Far side? Will it get better?

Yep, here I am on the far-side of the go-live and moving rapidly away . . . and I am still having negative thoughts. Some days it feels like it is getting better then something will happen and I have those feelings of "fear and loathing" come rushing back. I am trying to work my way out of the negative thoughts . . . some days are good and some days are bad . . . I just don't know how much longer I can put up with a job that is so high stress. This is the worst . . . absolute worst . . . it has ever been. Sighhhh, and the worst part is I really need to keep my job ( got bills to pay of course) so I need to toe the line, do what needs to be done and make the clients "happy". I just don't know . . . can I do it???