I think I understand what you're saying. For example I suffer with depression and I have long bouts of just trying to push away those things, stay positive- all the things people say you should be doing.
But I find that doing this for too long makes me extremely stressed. When I finally give in and go "hey, I have depression. I feel crap right now", I actually feel a ton better. But if I dwell on that feeling for too long, my depression becomes worse.
Maybe a good way of striking a balance would be to create a "worry period"- I've heard it recommended for general anxiety disorder, so think to yourself "I'm going to let myself be sad/anxious/worry about things at half six for half an hour". It seems very structured, but I imagine that would work.