I really will need to start charging after this B56.
Obviously there is a ton of work to do here.
'He's crap but he's cheap'
Focussing on cost while denigrating those who try to help speaks volumes:
Deep seated resentment and self-loathing due to low self-esteem. It's all there as plain as the eye can see.
Let's start with the assumption that that your mum probably made you wear frilly trunks way beyond the age that was acceptable.
Other boys would have been wearing proper shorts or more modern looking swim wear.
You didn't like to 'stand out' but in a strange way, it fuelled your need to be noticed.
A toxic blend of frustration at having to deal with the uncomfortable feeling of being a laughing stock and the strange, yet penis-tingling sensation that came from people looking towards your nether regions robbed you of normal adolescent development.
Next, we need to consider your fear-driven anxieties.
Doubtless when playing 'stepping stones' in the shallowest of streams, your need for image-protection, would have lead to a painful decision having to be made.
"Do I risk getting wet feet but fit in with the in-crowd, or do I make my excuses and meet them on the other side having used the bridge"
After all these years of playing and replaying this scenario, you yearn for the opportunity to take the braver option and do what the 'big boys' did and cross the river on the stones.
The problem now, of course, is that each of those stones has come to represent a different hurdle in your life.
Major, life-changing 'river-stone' opportunities have been dismissed for the sake the easier 'bridge' option.
My advice would be to go and buy yourself a pair of frilly trunks (age 10 to 12) and go and run across that stream, by-passing all the stones, whereby getting your feet as wet as possible and banishing the sub-conscious feelings of unworthiness.
Maybe even have a go on the swings too, to simulate feelings of higher achievement as a motivating factor on your road to recovery.
It's difficult to guess what level of dysfunction this has had on your ability to perform in the bedroom, but I'd suggest refraining from alcohol for a while to see if things improve.