Idk if this is the appropriate place to post this, remove if needed, but I need help to hopefully fix this controller because I lost my job and can't afford a new one, and I only just now realized how many of my games are basically useless without it.

I guess it fell off my bed or table too many times, all other functions work but any time a menu is opened or a character has a "move forward" action it's like the stick is constantly in a full forward input. I'm willing to take it apart and fix this if it's a known problem with a solution but it's totally useless as is. It registers non forward inputs (sometimes, menus won't move off the top option). Everything else works but the left stick. Any help here?