Stretchmark under shaft

I'm very depressed as I write this. I realise stretch marks cannot be fixed..I'm not worried about the appearance either but this is like a nightmare for me, everything from liver disorder, severe acne to excessive hair to stretch marks to weak skin to thin nails, thin hair and hypersensitive skin has happened to me, I have accepted it, it is what makes me who I am and I cannot change it, nor doI have the money to afford proper treatment, I know the ins and outs of my scientific nature of the problems down to the last detail.

But now I feel betrayed and completely miserable.. recently I noticed I developed a stretch mark running from the base of my shaft upto the foreskin, the texture is completely different from the rest of the body and because the skin if so flexible, everytime I even hold to pee the skin streches along over the non collagen broken side.

Since collagen is what keep its structure, now its compltely loose and only tighens when I have an erection. It's painful whenever there is tension during erection because there are hair strands there, if I shave it, then it hurts and if I let it grow a few mm then the strand gets wrapped along with the flexible top skin.

The possibility of a filling in the future is something I cant think of either because normal stretch marks are at a statis place of the body, but the penis is always expanding and contracting, a filling wont take that much.

Its been a month and I'm getting depressed everyday while I go to pee or masturbate and feel like crying because I'm sick of being such a pathetic excuse for a healthy being.

anything gives me stretch marks, and everything affects me 10x than it does a normal person, women I know are more durable than me, my siblings are more durable than me.

I cant eventake off my shirt for a swim because of my acne and hair.

Tired of this, dont know what to do anymore. I was handling it fine till the stretch mark under my shaft, now I just want to give up. Theres no point. im 20 and I have to deal with these problems till the day I die, atleat I could have had some more time till I got married, why all these problems now, is my body degenerating from my mental health ? but my mental health is the result of what I go through everyday, Ic ant change it. Whats the point.