You are killing yourself with stress, and I'm not sure meds are going to fix it unless you get rid of the environmental stressors. Working 6-7 days a week over the long term is ridiculous, even for the most stress-tolerant person If you have to find a new job to function adequately, then you should.

You sound like you don't care for meds. I don't blame you, but there's no shame in taking them if other atlernatives aren't working for you. Maybe try a low dose of one drug or the other and see if it takes the edge off?