I actually tried TWICE to drop my meds. Each time my life fell apart, as you described.
The second time, however, I did not interpret my life falling apart the way you did: instead of interpreting it as validation of the medication's effectiveness, I interpreted it as a withdrawal period. So the second time I quit, I expected going into it that the process of adapting to life without medication would probably last at least 2-3 years.
I can't say what would've happened had I taken your path and not mine. But fifteen years in, I have no regrets. I still don't do what I'm told, but I'm productive and happy and useful. I've found my own way, and it's been a good way.