bad sex advice

i’ve been on this app since I was 14 and it’s been so much time reading all of the sex stories and tips and everything. Now at 21 after losing my v at 20, every intercourse session I have had has been awful. I am so embarrassed. I have nowhere to go or anyone to talk to because none of my friends under what its like to have bad sex. Is there anyone else who has never come from vaginal intercourse? what did you do to fix it? It’s to the point where just the thought of having makes me want to cry seriously. And people always say you should practice on yourself blah blah but none of that is working. I know exactly what I like but it’s not working. Even as I’m writing this I want to cry because everyone else is having amazing time and orgasms and I have five bodies and still can’t get a right. it makes me feel like a blow up doll. please help me i am lost.