I encountered a problem with my mental state yesterday that was unexpected and I found myself unprepared to deal with it.

I did, of course, because I am here now. But I lost something and know I can never put myself in the same situation again.

I don't think it was a chemical imbalance but it was a mental weakness just the same. I never want to return to that place. If you feel your imbalance is chemical then you are fortunate, as there may be a medication that can help you overcome the problem.