Low libodo with new lifestyle

Hey,

First of all, everything is possible guys. I had maybe the worst addiction out of everybody. HOCD and addiction killed me everyday. But Nofap and working out gave me a new life. Just never ever give up.
My situation:
I completed a lot of Nofap streaks back in the days. I haven't used porn for maybe 1,5 year. I only M without porn and have sex with my girl.
The problem with my new life is: I still have ED which causes PE sometimes. After a few days of no O it gets better but not the way it should be. I can get hard, but not enough to have good sex.
I think its because I only sleep less than 6 hours everyday. I also workout for like 6-7 times a week. Can exhaustion be the cause my ED?