Ryan, great to have you along. I’m going to respond to three different elements of your post:
First, you say you “tend to be depressed most of the time. I spend a great deal of time thinking and not much time doing…” Man you gotta get over that. Depression is a “mental tension” and if I can be so bold, if you can relax your mind, then your cock will follow. It’s possible that the shape of your penis is a metaphor for your mind: wide, but lacking the depth of self-acceptance. If you can loosen up your mind and accept yourself more, then I believe your anatomy will follow (or at least be freed up to change along those lines.)
Second, I’m not being judgmental - your choices are your own. But is it possible that 25+ women who you don’t see anymore would not be as satisfying as one woman that you have a deep relationship with and could grow to love your thickness and appreciate and love the rest of you as well?
Third, as to physical process, I would suggest consistent, daily stretch from light weight. I have had great results with the circle device from D.France. It’s quality made and would accomplish your length goals over time. I have two different sizes from him, both the regular and 24 oz. His site is at: http://www.dfranceinc.com
PE is a long term process. Keep at it and integrate it. We all wish you the best - in everything.