I'm 24 years old. As a teen I was addicted to porn and only knew of prone masturbation (lying on your stomach). I indulged multiple times a day. In college, I had numerous opportunities for intercourse. Unfortunately, I have yet to have a sexual experience (whether that's masturbation alone or intercourse with a partner) where I am able to maintain a sufficient erection. I noticed that I can only "flex" my penis to improve the erection for a brief second. Additionally, I notice my erections are sometimes better when doing doggy sex, but it only last a few seconds. I gave up prone masturbation 5 years ago. I also gave up porn at the start of this year (90+ days and counting). Unfortunately, I have not seen any improvements in my erections. I consider myself average healthy (skinny/ectomorph) with moderate exercise. I've had lots of blood work completed (miner B12/D deficiency and occasional high TSH). I would consider myself generally more anxious. I occasionally notice funky twitching in my scrotum. On a side note, I'm investigating chronic lightheaded and fatigue issues I have been experiencing for many years. Can anyone relate or have recommendations on which direction I should explore? Thank you!