Is this a flatline?

Hey everyone, this is my first post on this forum so if I make any mistakes, please let me know in the replies(Im sure you will lol). First off i just wanted to say thank you to everyone on this forum for always being respectful and helpful. This is the problem that I have. I started nofap like 3 weeks ago due to low energy levels. I didnt have PIED or ED or an extreme addiction(I dont think I did). I PMO'd 2 times a day for like 2-3 years just because I was bored. I never felt like I needed it, it was because I had nothing better to do. Once i started nofap, energy was instantly higher but I think my flatline started instantly. The thing is, the only "negative" effect Im getting is not being able to get a full erection. Im still happy, with more energy, still like girls, Im like mentally horny but I only get 60% hard. I think Im about to do some stuff with a girl but I doubt I will be able to get 100% hard. I have MO'd twice in the past 3 weeks due to phone sex with her. When I MO'd I came within 1 minute and only had like a 60% erection. Any tips on what I should do?

 

She is not my girlfriend. I dont think it counts as a reset. Do you think nofap will bring back my ability to have full erections while not using porn?