Thx for your kind feedback! You're absolutely right. The character doesn't feel all that great (I was actually programming character movement during a 6 hour car drive, with no wifi or access to my other projects, so I kinda had to go with my gut). In the following year I'd like to look more into complex jump and run movement so I can easily and quickly create more advanced controlls.
If you wana chat some more about game dev and stuff, I'd love to. My Discord tag is pkmoritz :)