When

When am I going to stop feeling sorry for myself and get to a point where I am happy again for a sustained period of time?  I feel that I am just whining and having my own pity party but I can't seem to get out of it.
I am seeing a therapist have only had 3 sessions so far and 2 hypnotherapy sessions one worked and had me happy for 2 days before the wall crashed again but the second did not work at all I don't know why.
I also wonder if the happy me is the mask and really I am supposed to be the grumpy miserable person.