Improving page speed

Good day, Can you assist me with the steps I need to take in order to improve my page speed as per below diagnostics? https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fwww.mrsrainbowonlineschool.com%2F My URL: www.mrsrainbowonlineschool.com Thank you, Lilian