Slope issues, flat ground to steeper slope

[celest fulcrum]

My slopes work fine for the most part, unless they're 45 degrees. Climbing them from flat ground is nigh impossible. Transitions from 45-degree slope to flat ground also launch me forwards! How do I make my player stick to the slope properly? And have them move in parallel to the ground?

https://pastebin.com/iUKe7sSd

here's my code

And here are my player components