How do y'all manage to get a neurotypical girlfriend?

Good evening, so I've had a few neurotypical girlfriends, but I can't seem to make the relationship last very long. My main problem is social stuff – I'm just really bad at it. My last girlfriend was the 'life of the party' type, but super disorganized with everything, which really doesn't work for me. Plus, I overthink everything, and my anxiety is through the roof. Another thing she used to do that drove me nuts was changing plans last minute – I hate that.

Any advice? I'm scared I'll end up alone when I'm old.

P.S. I used to live a life of drinking, and being drunk made the social stuff easier, but I quit 7 years ago, and I don't want to go back to that lifestyle.