Pill driving me crazy???

I’ve been on the pill since I was 15 with absolutely no side effects or issues. September of 2017 I was 22 and I went in for my yearly appointment and was told the pill I was on (I can’t remember the name for the life of me) was being discontinued and they were putting me on something similar. By November of 2017 I knew something was...off. I hadn’t really been feeling like myself, I was gaining weight, mood swings and random bursts of anxiety. I told myself that your body needs time to adjust to a new pill and I hadn’t been on it very long. Fast forward to September 2018, my anxiety is 100 times worse to the point of not being able to sleep at night, I’ve gained over twenty pounds, and the wind blowing in different directions is enough to make me start crying. I told my obgyn all of this and she suggested I change my diet and exercise. Been there, done that. Hasn’t helped. I’m on myzilra 28 day. Any recommendations or helpful tips are greatly appreciated.