As someone who suffers from depression due to previous drug abuse I can't even begin to imagine what you mean by just get on with being happy, I have a loving wife, good job and I guess what most people would call a happy life but I'm never more than two steps away from just opting out, I have been through therapy and various anti-depressants but they leave me feeling the emptiness even more profoundly.

My brain chemistry is irreversibly fucked for lack of a better word, a little strategising might just give me a little hope, although false, hope is better than the clear and obvious solution to my woes.