Scared to move on

I’m a 22M dating a 23F. I have happy moments with her and i know i like her but i know she isn’t good for me and leads me to making decisions. It’s hard for me to let go even with a bunch of people telling me she’s not good for me. She obviously loves me back and she cut off all her friends for me even tho I didn’t ask. I just feel like she doesn’t treat me right sometimes and she’s given me this ultimatum of if I don’t move out then it won’t work between us which I feel is insane. I’m just worried that id never be able to find anyone and wanna know if it’s right to cut it off or if I should try and make it work?