i personally have suffered the same thing about 2 years back; I never got to the caliber that you did, but ended up stopping for 2 years. I didn't truly stop, but only tinkled on something, then proceed to hate it & make nothing for another month. Looking back, my biggest regret is that i didn't push through it. I'm now in a process of still disliking everything i make to some degree, but have found out that if i finish it within a short timeframe i can still tolerate it to the end. one thing that really helped me was to switch DAW, as well as finding my weak spots in production to improve on.

There was a docco i watched that said something to always keep me going: 'you've got this great taste in what your into & because of that you can tell your own work isn't up to scratch, but you need to remember that eventually your work will catch up with your taste, it just takes a very very long time to get there, your work will eventually reflect your taste'

On a final note a good john cleese quote: ' it takes precisely the same amount of skill to be good at something, as it does to realize you're not good at it', in other words, its because you're good, you know your not good enough. idiots always think their crappy work is great & brilliant minds always thing their work isn't brilliant. make music for you, as a passion, not for other people... applause is a receipt, not a bill.