Question? Are you taking the meds on their own without seeking a cousilor/theropist?
I have recently just gotten off antidepressants because the last lot didn't seem to agree with me and was actually making me worst. I'm at the moment still seeing a pyshocologist which has been helping.
You have to stop comparing yourself to the past.
Self esteem is always one of the things to go when you go down, but it does eventually come back.
(time is always one of the biggest factors)