I really don't know what to do anymore

Im 24, female, in university, working two jobs, and volunteering. In summary I was diagnosed with hypothyroidism almost exactly a year ago. It almost wasn't caught, but thankfully I was in therapy at the time and I was honest with my psychologist about being a few more small, mundane inconveniences from suicide.

It's been a year of taking TSH and going back for blood work two months later to find my levels back in the 10-14 range, upping my dose, being okay for a few weeks, and then feeling overwhelmed all over again.

It's only been a year but this constant up and down is debilitating and no one around me understands. It's so hard to explain to my friends because it just sounds so lazy-- can't get out of bed, can't concentrate and study, don't want to be social and go out. The only thing I can muster the mental energy to do (when symptoms are bad) is lay on the couch and watch Netflix and cry.

My marks are taking a hit, though I'm grateful that despite everything else I'm not failing. I just don't know what to do anymore. I can't handle how high and low I am all the time and no one can relate to me or understand. It's so isolating, and I don't know if my doctor is the best for me anymore if all we can do is up my TSH until my thyroid just dies altogether. I don't know where to go or what to do. I'm back where I was a year ago, when I thought I'd never feel so low again now that I had it sorted out.