> but am I killing the old me? Am I discriminating against the old me? In taking the medication are we declaring the me I was born as a dysfunctional useless person?

What are your goals? Was the "old" you getting any closer to your goals? Is the "new" you getting closer? It's OK to take the pragmatic view of your environment and situation in life. These things matter too, especially when you have to support a family.