Depo / PCOS

So I was on the Depo shot for 4 years. About a year later I started bleeding all the time. So I went to an OBGyN who told me I had PCOS. I was put on metformin and letrozole.

I started having emotional outbursts ( hormones changing ) and having regular monthly periods. I quit all the meds due to pressure.

Well this year 2021 marks 4 years I haven’t had Depo. I have felt the same way I felt on letrozole. Hormones rising. Emotional Rollercoaster. I have had regular monthly cycles.

A girl once told me it takes as long as you were on it to get it completely out of your system. ? Is this true. Anyone else have these same problems or same issue ?