Why don't you try this then: give yourself a set date in advance.....1 month, 2 months, etc. Tell yourself you are going to really dedicate yourself to your CBT program and really work one taking good care of yourself. By setting this timeline you can put your full energy into these things and not use it on the "should I or shouldn't I"
I'm currently on medication, Lexapro 10 mg. My psychiatrist and I had briefly discussed increasing the dose after a bad depressive spell earlier this month but I decided to try to stay the course. I am doing other things: not formal CBT, but doing CBT exercises myself, meditation, exercise, etc. And working on some stuff from the Acceptance and Commitment therapy approach. My plan is to continue my current medication, but really dedicate myself to these life changes which have really been beneficial to me. If I'm still having bad spells of anxiety and/or depressive symptoms after three months has passed, then I will increase my lexapro dose, but not before (Unless my psychiatrist strongly recommends it, because I have a tendency to over-doctor myself and I need to leave myself in her care to some degree). So I feel secure in my plan....I take out the extra "do I don't I" mental chatter for awhile. :)