I've been with my girlfriend for a while now and I have 2 questions.

1) during oral sex I cannot reach climax. She is my first person who I have been with sexually so I think it's because I'm not fully comfortable with someone else down there after years of pleasing myself. My erections are not fully hard like as if I was doing it and it feels good but I don't dont know why I cannot be fully up and enjoy it. Every time we've done oral this has happened, I've never finished due to it. I usually have to finish myself.

2) With sex I cannot keep an erection. At first I thought it was me but the I thought it could be the condom. Leading up to the sex I was up and we've done it the rear with no condom, I didn't finish but I never lost it. With the condom I seem to not be able to keep it up.

Like I said I believe it could be since this is my first person I've been sexual with. We've been together for a while though. I run daily, I'm about 20 pounds over weight but eat healthy and all that. I'd hope it get's better and more comfortable with time but am uncertain why it happens. Any help is appriciated.