Hi.
I have played and liked a few of your games, and checked out your attempt on a platform fighter. It looks nice, but pulling such a game in a satisfying quality is damn hard. Think twice if you really want to go down all the way.
I tried to make one last year. Since you ain't the first who tries to get into the matter I put my source online.
https://thunderperfectwitchcraft.org/arcane_cache/2023/02/13/independent-platfor...
It's written in Cpp and is not outright compatible to Godot, but maybe you can pull something from it or it helps in any other way.
Greetings!