H1-H2 tags on home page (used incorrectly for formatting)

I am hoping you might be able to help me with an issue I have with multiple H2 headings on my sites pages. They were created when formatting the text (making the font size I wanted) but how I am being advise I should tidy this up and use only 1 of the H2 tags. The HTML currently looks like this - How can I remove the unnecessary H2 tags without losing the font size settings? Thank you in advance for your help/advice.... Chris [arve url="https://www.youtube.com/embed/_G3o1TdkaQo?modestbranding=0?loop=1?colour=red?showinfo=0?controls=0" mode="normal" align="center" autoplay="1" promote_link="no" thumbnail="9624" title="Samui Private Boat Charter Catamaran Yacht Rental" description="Samui Private Boat Charter Catamaran Yacht Rental" upload_date="19-04-2017" duration="2M" maxwidth="4000" parameters="fs=1&start=12"/] <h2 style="text-align: center;"><span style="font-size: inherit;">Established in 2013, Samui Luxury Boat have proudly achieved a reputation for customized private charter </span>experiences for couples, families, party groups, corporate events and special occasions.</h2> <center> <h2>Our Mission Statement:</h2> <h2>1.) Safety We regularly inspect the licensing, condition and service on board each of the carefully selected boats, yachts, catamaran which we recommend.</h2> <h2>2.) Guest Experience Communication is the secret to ensuring we meet or exceed our guests expectations.</h2> <h2>3.) Value For Money We provide the highest possible quality of service and experience according to budget and requirement. We go the extra mile to offer the most suitable solutions.</h2> <h2>4.) Expert Recommendations & Advice We do not own any of the boats we choose work with, which makes us unique. We are completely honest and unbiased.</h2> <h2>5.) Having FUN! We love to see happy people and get 5 star reviews! We specialize in Pre & Post Wedding Parties, Honeymoon Cruises, Family Tours, Corporate Events, Romantic Sunsets, Proposals, Stag & Hen Parties.</h2> <hr /> <h2>Samui Luxury Boat offers a carefully selected choice of 16 different boats...</h2> <h2>From the most luxury speedboat, catamaran and motor yachts for a private charter</h2> <h2>To the best speedboat and catamaran for group joining trips</h2> <hr /> <h2>Explore the stunning islands of Koh Phangan, Koh Tao & Ang Thong National Marine Park.</h2> <h2>Enjoy activities such as Snorkeling, Scuba Diving, Fishing, Jetski, BBQ lunch, Sunset & Sightseeing.</h2> <hr /> <h2>We have a 100% guaranteed refund policy for bad weather.</h2> <h2>We provide variety of customized options to suit your preferences and budget.</h2> <hr /> <h2>Most importantly we have an enthusiastic and professional team!</h2> <h2>From our expert Captain's, to our creative Chef's to our patient VIP minivan drivers, and our interesting and entertaining Tour Guides!</h2> <h2>We all enjoy what we do, we are very proud of our Trip Advisor Reviews!</h2> <h2 style="text-align: center;">Sit back and allow us to take care of everything.</h2> <h2 style="text-align: center;">Let us share our expert advice on weather, itineraries and activities.</h2> <h2 style="text-align: center;">As Koh Samui's leading agent, we offer you independent, unbiased recommendations.</h2> <h2 style="text-align: center;">It's in our interest, to offer to move your trip date to the best weather day during your stay!</h2> <hr /> <h2 style="text-align: center;">Additionally, our staff provide you with up to the minute reports on current weather conditions and forecasts.</h2> <h2 style="text-align: center;">We want the best experience possible for our guests!</h2> <hr /> <h2 style="text-align: center;">OUR SERVICE</h2> <h2 style="text-align: center;"> All inclusive, customized luxury packages.</h2> <h2 style="text-align: center;">We provide our guests with detailed itinerary planning.</h2> <h2 style="text-align: center;">Complimentary beach pickup service is provided whenever possible.</h2> <h2 style="text-align: center;">We regularly inspect and review: * Vessel Condition * * Safety Equipment * * Service Standards * * Insurance Documents *</h2> <hr /> <h2 style="text-align: center;">EVENTS & SPECIAL OCCASIONS</h2> <h2 style="text-align: center;">We have a wealth of experience and expertise organizing:</h2> <h2 style="text-align: center;">Birthday Parties Romantic Proposals Stag & Hen Parties Bucks & Bachelorette Parties Wedding Parties Honeymoon Trips Anniversaries Parties Corporate Events</h2> <hr /> <h2 style="text-align: center;">WEATHER ADVICE</h2> <h2 style="text-align: center;">Please allow us to monitor accurate local weather station forecasts and update you 48 hours before your trip.</h2> <h2 style="text-align: center;">Please DO NOT RELY on Mobile Phone Weather Apps, they are often inaccurate or insufficiently detailed.</h2> <h2 style="text-align: center;">Rain showers (typically short lived) do not affect safety when conditions are otherwise suitable. During the peak and high season it may not always be possible to reschedule.</h2> <h2 style="text-align: center;">We cannot guarantee perfect weather conditions, however everyone in our team gives 100% and it’s our aim to provide you with the best possible experience!</h2> <hr /> <h2 style="text-align: center;">CANCELLATION POLICY</h2> <h2 style="text-align: center;">100% guaranteed immediate refund if our captain cancels the trip (this could be last minute as a result of poor weather conditions or technical issue)</h2> <h2 style="text-align: center;"><span style="text-decoration: underline;">Our guests safety and comfort are of primary importance</span></h2> <h2 style="text-align: center;">We will do our best to either reschedule to the next available date, with suitable weather conditions, or offer to move your charter to an alternative boat.</h2> <h2 style="text-align: center;">If we are unable to amenably rearrange then we will refund in full.</h2> <hr /> <h2 style="text-align: center;">AVAILABILITY & BOOKINGS</h2> <h2 style="text-align: center;">We do our best to assist with LAST MINUTE enquiries, however at very busy times this is not always possible.</h2> <h2 style="text-align: center;">For high season we recommend booking in-advance, we prioritize bookings and enquiries accordingly.</h2> <h2 style="text-align: center;">Please complete our enquiry form</h2> <div align="center"> <hr /> <strong style="color: #000000; font-size: 1.6em;">Chris Mills <h2>Managing Director at Samui Luxury Boat <span style="color: #000000;">has over 20 years experience in hospitality and communications.</span></h2> <center>[gallery type="circle" ids="2841,2839,2058,2057,1673,939"] <h2>Most noteworthy, were projects for global brands such as American Express Foreign Exchange, Amazon Online and British Petroleum based in London, UK.</h2> <h2><span style="color: #000000;">"We have established a team of highly experienced guides with a wealth of local knowledge. Our expert captains consider all contingencies."</span></h2> <h2>"Come and enjoy an exciting, safe and memorable experience. Our team here is highly qualified, diligent and aims to consistently delight our guests. All our Trips & Tours are customized for you, with flexible start times."</h2> <h2>"Ultimately, we have a passion for luxury service, safety and having a lot of FUN!"</h2> Contact Us </center></div> </center>