Overthinking getting it up as a teenager

I had a problem where I withheld sex for years because I was nervous about how I would perform, when I finally braved my self up to have sex at 18 for the first time I was so nervous I kept going soft, this was traumatic and ever since then all I can think about is it happening again, I’m 19 now and I’ve gone soft on 4 different girls within the last 3 months and managed to get it up for 2. I know it’s all in my head and I want to be able to have fun at college and sleep around but I keep telling myself I can’t do that because u can’t have sex coz my dick doesn’t work. It does feel like an endless cycle where I have to be relaxed to have sex but relaxing myself is the hard part. I also have terrible adhd which doesn’t help my situation. Any advice on how to stay calm

Remember to breathe, try guided meditation. A lot of people say ‘I can’t do it’ and I think this is false, everyone has the ability to give it a genuine go. I suggest the app Balance but there’s plenty out there
Also remind yourself that you’re young, you’re still figuring it all out just as much as the girls you’re with.
If you watch porn try not to compare your sexual encounters to those fantasies. This is easier said than done, but just be kind to yourself and remember that everything you’re starting to learn here (in Mojo) is two steps forward, one step back.
Things will get better with time.

Btw the first time for everyone everywhere ever ever is always, always always terrible, try to not beat yourself up there