Do I have PIED? Is Sex okay during Reboot?

Hello everyone.

I'm 24 years old, I've been PMO since I was probably 10. It slow down in college because I could only do it once a week. Once I graduated it changed. I was doing it almost everyday, maybe 4-5 times a week.

I'm currently on day 16 of my reboot of PMO. Last week I lost my virginity to a girl that I met on tinder. I didn't really know how I would respond to her so I was very anxious. Anyway, throughout the entire time talking her I had a boner, even when we were cuddling. We did not have sex until the next day. However, during the foreplay I was rock solid. I was excited that I was able to get an erection with her. When it finally came to penetrate her, I was able to, but I noticed when we switched positions I would lose my erection or whenever I put on a condom it would get weaker. We were able to have sex several times, but I never orgasm from it, but I did feel the pleasure somewhat. I was able to orgasm when she gave me a handjob. Anyway, she's coming over tomorrow and I will visiting her this weekend, so sex is expected. I always get hard for her even if I'm just looking at her or cuddling. I was wondering, are there any supplements that would help in maintaining my erection? Is okay to rewire with a real girl?

I don't have the urge to watch porn anymore, I just want to be able to please her.