I have experimentet with it for a year before I found a good balance for my self. Not fapping keep your 'sexual' energy inside of you, which means your body doesn't have to reproduce your seed again and again. this production of seed is very diminishing for your body and energy. And when you stop fapping all the time your testosterone level rise and after just 1 week you will feel better. There is A LOT of people who know a lot more than I on the internet if you google nofap. And everyone experience different things.
The better version of yourself is a more manly, stand up guy. who doesnt take bullshit from anyone. You become more self confident and you think quicker and get a lot of ideas because your brain starts to work better.
Also when you fap you release a huge portion of your indorphines which will give you a great sense the first and maybe the second day, but after that you will fall into a more depressed state and feel fatiqued, tired and problably avoid contact with people. I know it soudns extreme, but if you try nofap yourself you will maybe see what I mean.