How do you mentally cope with highly irregular periods?

My cycles seem to be getting less and less regular the older I get. I’ve missed 3 periods in a row now and my PCP and OB don’t want to do much about it unless I want to have a baby.

I just feel frustrated and like my body is broken or something because it won’t just do it’s natural thing.

(I don’t want to take birth control because it heightens my depression and anxiety disorder to the point I have panic attacks. This doesn’t happen if I’m off BC.)