I embarrassed my self during sex and more importantly may have something severely wrong with me

Sorry for the architecture of this summary I'm shook up and can't really think straight and running on 2 hours of sleep. Bit of a backstory I've been having a

really hard time financially, and had to move back in with my mom due to a really bad roommate, and dealing with a lot of stress from other things like my dads drug addiction etc etc depressions been killing me and I honestly feel emotionally numb.

Thinking sex would make me feel better (as always) I hit up this girl (Used sex to help with emotions for a really long time) been friends with her for about 9 years. She wanted to have sex blah blah blah, hop in her car and we hit up the spot.

I’m feelin her and shit n I honestly think she’s pretty and has a beautiful body but the issue is that I’m having a hard time getting it up, all I can think about is past trauma and my situation in life at this moment, I’ve never had this issue, well I get it to come up and it I begin to fuck her but it kept going limp. We try over and over but again, all I can think about is how fucked up my situation is right now, I cant even feel emotions for a girl anymore I feel like. I’m 19. Never had this issue until last night. So she gets mad and puts her clothes back on. We just hangout for a bit instead and she insists I keep trying but I repeatedly tell her I’m just going to keep embarrassing myself.

After hanging out she drops me back off, but it gets worse, now a friend that I’ve had that I’m used to talking to everyday will barely respond to me and will snap me dry as hell. She lost all interest for me I feel like and idk if this is going to be an ongoing issue, girls have always used me for my body I feel like that I’m unlovable and the only key to a girls heart is sex, but now that I can’t even do that I feel worthless.

Also I thought I may add that I really liked the way she was sexually and I feel like I lost a real one and keep beating myself up over it.