I am new - some questions

Hello.
For the last 2 years I suffer from ED.
Main symptoms are - lack of libido, ED, lack of prostate secret when ejaculating, and long refractory period (1 or 2 days).
I am training 3 times per week, in order to keep my hormonal levels in a shape.
So how my journey started...
I was alone for an year (2018-2019). During that time, masturbated almost every day. Didnt even notice that I was losing my morning wood, couldnt sleep for more than 7 hours, depressed, constipation and lack of energy. Was training hard and thought that was the problem.
In 2019 met a new girl in Tinder. Fantastic girl. Really nice body, I was so attracted to her. One night, she decided to come at home, and we did sex (used sildenafil, in order not to fail). Perfect night. Then the following days we met again, and then the problems came....
The second time we met, we did sex again. No problem achieving erection, but failed after changing the pose 10 mins after we started....I shocked myself, cause that was something new to me. Then, the I started "testing" myself at home, using porn, in order to gain the confidence again. What I noticed, I had longer refractory period than before. 1 year ago (in 2018) I could do sex twice per night, without any problems. In 2019, I couldn't do it anymore...
Started going to doctors, tested almost all hormones, etc, but nothing to find a reason. Everything was in range. Testosterone was around 17.8-19.1.
My condition with the ED was worsening and worsening by the time with the girl...She helped me, was understanding the problem, and we never had problems with that...
Had time when I constantly didn't have morning wood...The only thing that was helping was the nitric oxide and the training in the gym.
Then I realized that the problem might come from overtesting myself by using porn and overstimulated my dopamin receptors...We broke with that girl, for different reason, and now I am for a week without using porn and ejaculating.

I am planning not to ejaculate for the next 30-60 days.
Ok, fine, but some questions arising.
If we guess, that I will improve my ED after 30-60 days, what's going on after?
1) If I find a new partner, should I keep the abstinence of ejaculating or I can ejaculate?
2) If I do sex with that partner, what might happen if I ejaculate? will my ED symptoms come back?
3) Can my brain completely restore the production of dopamin even If I ejaculate by doing sex with a partner?
4) Will my refractory period get better or worse if I have a partner, doing sex everyday and ejaculating?

Thanks in advance!

 

Yes, I understand the point. For example, the masturbation will be cut forever, no problem. Porn, also. The main problem is, having regular sex, without obtaining ED again and the long refractory period. I want to ejaculate, I want. ED, ED, thats disturbing...That's what I want to beat.