How do you deal with hypothyroidism symptoms?

I was diagnosed with hypothyroidism about a year and a half ago. I have since been trying to find a stable dose of synthyroid with my endocrinologist. He believes that the 100 mg dose I am on now may be suffienct. I only have to see him twice a year now, instead of blood work every 6 weeks and an office visit every three months. I still don’t feel like my old self. I will admit that I feel about 80% better than I did, but the feelings of anxiety and depression are still lingering, worse sometimes than others. I am looking for your experineces with the illness, how you coped with it all, and how long after you were stable on your medication that you felt like your old self again. I have thought this whole time that something more serious is wrong with me, only my doctors can’t find out what it is. Did any of you feel this way? Thanks for the help.