1) None of the animations are useful. None of the scroll gates are useful. They all get in the way. Remove them. All of them.
2) Don't make a person scroll so goddamned much. It's maddening and unnecessary.
3) Have a persistent table of contents on the side if your section headers actually matter.
4) Don't ignore Web Content Accessibility Guidelines for content readability. Your tiny low contrast text hurts my eyes.
5) Don't ignore user preference for dark text on light background.
No ideas how to design a site (or too many ideas)? The motherfucking website to the rescue! https://motherfuckingwebsite.com. It also has theee other incantations.
Edit: http://bettermotherfuckingwebsite.com/ is the next one, and the third one is not worth it