I respect your apology and your accountability for previous threads. Your frustration is understandable - loneliness is very painful and rejection hurts - but I am glad you can recognise how harmful resentment can be in this situation. I hope you take some time to re-evaluate your perspective on women and relationships going forward.
I agree with the above though: Is completely ceasing masturbation wise? There is a wealth of research illustrating the physical and psychological benefits of masturbation. If it is having a negative impact on your life or if it's excessive for you, I can understand wanting to cut back, but I question the benefit of stopping entirely. I have seen a lot of anecdotes about the life-changing impact of "NoFap", but very little scientific research that reliably backs it up. Of course, it is your decision regardless of what anyone says.
While your other goals for improving your life are admirable, it feels like you are putting a lot of pressure on yourself to suddenly adopt many new habits, such as exercising six times per week and exclusively eating healthy vegan foods. I truly hope you succeed and achieve your goals. I simply question if some of your previous habits - such as browsing YouTube, sugary drinks and unhealthy food - were also coping mechanisms, and whether abruptly changing these habits without adopting alternative methods of coping (that you find helpful) could contribute to higher stress levels, making these goals much harder to implement.
I recall that you also said several times that you would leave this forum, yet each time, you returned within days. I totally understand why - you have said before that you are isolated and that members here are the closest thing you have to friends. However, it once again makes me wonder whether you are being realistic, and if going from 0 to 100 is too much, too soon.
I just want to emphasize that you are making some massive changes, and that it's okay if you experience setbacks or slip up. It's also okay if some of these are not the right steps for you after all, to make more gradual changes or to re-evaluate which changes are needed as you go along. I wish you all the best.