I feel like my ed is incurable.

I’m 20 years old. Since 19 I’ve been having issues with ED. In may of last year i suffered a lot of mental trauma and stayed up at 5am every night to cope. I also developed a compulsive edging habit. When I had sex in september I didn’t feel confident enough so I took 100mg of viagra. Ever since that day each time I had sex I took that shit.

Eventually i figured out that even a 25mg dose works. Problem is that my ED got worse and worse.
I popped a 50mg viagra once, had sex 2 times in 4 hours and 2 more times after 5 hours (so 8 hours later after taking the drug).
This made me confident that I could have sex without the drug, yet I couldn’t maintain my erection it.
My baseline erectile quality without meds has decreased significantly. I went from normal masturbation where I maintained, to 1 min, to constantly stimulating, to not even getting fully hard when I stimulate it when jerking it. I also lost the ability to feel aroused (you know that burning feeling you get within and the increased heart rate, which i no longer have) yet I still masturbate out of habit. I lost erogenous sensation in the glans completely (yet i can still feel temperature and pain)
I started smoking 3 months ago, still havent fixed my sleep and stress. My t was 540 in march. I feel like this is something congenital but I cannot for the life of me understand why this happened so suddenly. Doesnt a venous leak take years?
Is there any sort of hope of coming back from this? I think the lack of morning wood caused permanent damage to me.