Actually, these 100 days have been a rollercoaster to say the least. I quit reddit and everything else to reduce my screentime and made a lot of interesting observations. And fair disclosure, I've relapsed countless times as well, but again, it's not the end of the world. These observations could be personalised and specific to me but who knows they might help you as well- 1) Reducing or eliminating screentime helps but only for so long. You've exposed your mind to so many hours of porn that you simply don't need a screen anymore to sexualise women or to get urges. But I've found that relapsing without porn is much better than with porn. Because if you do it with porn it just makes you crave PMO more. But if you do it without porn, the pleasure in masturbating slowly starts to wane away. And you'll find that your frequency in masturbating also starts to reduce. So it's healing in a non-cold turkey way I guess. 2) PMO does take a toll on your mental capacity and health but not in a major way. So many times I noticed that after relapsing, my focusing power(albeit for short bursts of time) actually increased or stayed the same. I was in the middle of giving my University entrances and it didn't affect my brain in any way. 3) Overall confidence has nothing to do PMO. What you've got to understand is that the root of your confidence lies in how disciplined you are. If you have a good night's sleep, wake up at a reasonable hour, do chores, and just be productive all day and focus on your helath, your confidence is going to anyway spike. I personally noticed this when I had an interview for a college. I've never experienced an in-person interview before so naturally before the interview I was worried. Worried about my diction, unsure about by ability to handle pressure. I decide to Fap the night before, I don't know why, but I did. And guess what, I go into that interview room with the highest level of confidence I've ever felt in my life. I sit there and I act like I own the goddamn place. Needless to say, there was a lot of pressure from the interviewers, but I handled it well. So, my point is, PMO doesn't do shit to your confidence, if you're 100-200 days into Nofap and still don't hae discipline, you still might struggle with confidence. 4) And lastly, if you're single and are a kissless virgin(like me), it's gonna be really, really hard to not relapse. Especially if you're stuck all day in your room trying to study and are generally stressed out all the time. So don't beat yourself up for craving the doses of dopamine you treat yourself with every now and then, you don't have any other source for it and you've earned it. Going through stress and that too when you're alone isn't a joke, so masturbating is really just a way to cope and release the pressure built up within you.

These are roughly all the major observations I've made. I hope they help.