Problem with erecting. Or is that ed?

So, in nov 2022, i had a date and went to have sex with a friend. But she recently had a date with someone else and they had sex. So, that day, i kept thinking a lot abt what if I get STD and stuff like that. I couldn't get hard that day and didn't have sex. Since then I suffered. I mean I keep thinking if this is due to the health anxiety I have or is that ED? I used to masturbate almost everyday once since many years. But last few months, i have been coming out of it. But there is always a tension that what if I don't get an erection during my next intercourse. I mean idk if I have ED or its just a hell lot of stress for various reasons. I do get erection like normal in the morning, when I don't think much and resort to porn I can get hard(while masturbation). But now while I think about dating and having sex, i feel not confident. Please help me. I am outside India and i have not registered with NHS. So please help me in this situation. I am planning to marry soon.