Hypothyroidism

In the past few months ive found i have hypothyroidism. Its impossible for me to lose weight. I feel disgusting and hate how i look. I wonder if any of you guys have had the same problem? Or maybe the opposite with hyperthyroidism? Ive gotten up to 204 lbs an absolutley hate my appearance to where i dont even want to go out anymore. Any advice on how to lose the weight? I exercise and eat alot better than i use to an still pnly gaining.