So I'm an 18 year old circumsized male. Over the weekend my new girlfriend blew me while we were wasted. It was cool to finally get oral but It felt somewhat uncomfortable, and there were only a few seconds of pleasure that was very minimal. She did it for like 10 minutes and I couldn't stay erect so i put it away and told her i was probably too drunk. However this week she's done it twice sober and the same thing happens, it doesnt feel good at all and i lose my semi erection pretty quickly. Maybe for a minute or so it will feel good if I jerk myself off but really all i feel is her mouth going up and down, no sexual pleasurable feeling after the minute. She knows what shes doing shes blown a couple other guys off before who have came in 5-10 minutes with ease, and Im attracted to her both emotionally and sexually so I don't understand what the problem is. Like I find her hot, the first time I met her i got an erection so its not that im not attracted. I was expecting it to feel amazing like everyone says, and I thought this problem was unique to me, but my good friend said he has the same problem except he stays hard, and even during sex it feels decent but sometimes he cant ejaculate and his hand does a better job. He says hes read somewhere that masturbating every day without lube, something we both have done, can damage the nerves in your penis. I am extremely worried this may be my case. From 13 to 17 I made myself ejaculate in a weird way by rubbing my boxers against my penis until i ejaculated, which wouldn't really squirt, but kind of pour out. I know it sounds weird, but I felt masturbating the normal way was uncomfortable, and through my method I would get off in 3 minutes sometimes. This year I started doing it the normal way, but always dry because with lube I really dont enjoy it, and it usually takes me like 20 minutes although I can get off in 5 if I desire. After ejaculating, it kind of hurts when I get an erection for the next two hours, I'm not sure if this is normal. Also, Ive smoked high grade marijuana once or more a day for the past 18 months. Ive heard this can interfere with semen amount over the years, but I have many friends who have smoked twice as long as I have just as frequently who don't share this no pleasure in a blowjob feeling. I am extremely worried because I am supposed to have sex with her next week and I want to be able to enjoy myself and stay erect for her while we engage. I also really want to be able to enjoy the pleasure of oral sex that I have looked forward to for 2 years. I can get hard and get off just fine when I masturbate, and I wake up almost every morning with a full erection that lasts for a little while if I think about sex. Please tell me what my problem could be, if its permanent, and what solutions you would suggest. Should I stop masturbating completely? If problems persist I will see a doctor but I would rather solve it myself if its possible and save telling my mom I have a sexual dysfunction that I need to see a doctor for because she is unaware of me even having a girlfriend. Plllleeasssee help i dont know what to do i have been depressed since ive reaized my dick only has feeling and gets fully erect when i jerk myself off I really want to enjoy it with my gf.