I am 16 years old,and i have been dating this girl for 1 year, in that time we did alot of outercourse, i mean alot, like almost every day.. had sex after about 11 months ago and it went well, but we had a pregnancy scare, she wasnt pregnant but when we went to have sex again about 2 months ago it was fine, but after i was really nervous, now since then, i get really horny, but when it comes to actually having sex i get nervous and i have trouble getting an erection or sustaining one, this is a big problem and usually ends up with me getting very frusturated... things you should know..
- i masturbated alot
-when she is giving me hand, during orgasm it tickles my penis and sometimes hurts, but it feels really good when i orgasm during sex
-sometimes after orgasming the tip of my penis hurts a little bit and my testicles get sore

- the only way for me to get erect usually is for her to do things to me until im really hard, but by that point, im already close to orgasming, someone please help me with this