I hate the way I look

I’m 5’5, 138lbs and I wear size 4-6.. I hate the way I look. A few years ago I was able to still fit in a size 2-4.. I know a size 6 is really not that big, but I feel disgusting. I don’t even want to have sex with my husband because of how insecure I am with myself. I try to work out at least 3x a week, but it’s hard sometimes because I’m busy working full time. And I’m so exhausted all the time. I have no energy. Most days I have no motivation. How do I get past this? I need to get motivated again. I really would like to lose about 8 more pounds, putting me right around 130. I think I have hypothyroidism and its a huge struggle for me. I know I should go to the doctor, but I don’t have insurance. Not really looking for advice I guess, just wanting to vent..