Help: Rocket League WILL NOT Open

Whenever I press play for rocket league, it says its running and then immediately crashes. It seems like I've tried everything at this point, including all 9 options on their steam crashing support page, I literally tried everything at this point and nothing seems to be working at all. Does anyone have an idea what may be the problem? Every other game on steam works for me and I've played the game during this update before the problem came up.