35 yrs hypothyroidism with goal to lose 170 lbs

I've been struggling for years with my metabolism issues due to my thyroid. 4 yrs ago I was struggling just to stay at 200lbs. To keep that weight I had to get minimum 1 hour of exercise daily and keep my calorie consumption close to 1000 calories a day. I kept telling my doctor something was wrong. She said my meds were a good level and it wasn't ideal to raise my dosage just to lose weight. She said that it had to do with the kinds of foods I was eating and that I needed to exercise more. I told her it wasn't what I was eating and that I was exercising but she didn't believe me. I got tired of having to work so hard all the time. I got depressed because I was also in a unhappy marriage. So I stopped and it was a huge mistake. I've gained 150 lbs in 2 and a half years. My health was so bad that I have to take blood pressure meds now and I couldn't even walk to the kitchen or do a chore without very bad back, side, and neck pain. I couldn't even wipe my butt. I know tmi! Sorry for that btw. I was rapidly killing myself and my body was screaming in protest with every activity I did. In June I decided that I needed to start taking care of myself and that changes were going to happen in my home. I started by eating smaller portions of what I normally eat. In July I went to stay at a friends to dog sit. It was nice having me time and I got lots of exercise as I worked upstairs and the bedroom was upstairs as well. I went up and down those steps and even though it hurt and was so hard at first it got easier. I decided that I loved my husband and I was going to try harder to please him and make him happy. In August I said *kitten* that! (Pardon the language) I work full time and have a career job. When we got married we agreed 50/50 marriage and to always work things out. Willing to handle the house 40/60 or 60/40 when situations required it. Things were not like that at all and if he suddenly changed his mind and wanted to be a man living in the 50's or 60's then he could leave and go find that wife that would work full time, cooks all the meals, take care of everything child related, and worship him for working a freaking 5 hr shift. A couple weeks later my husband told me he was leaving. Long story short he decided he didn't want to be an adult anymore. He abandoned his daughter, quit his job, and moved back to Idaho to live in his families barn. He left everything for me to take care of. It was very upsetting but was necessary. I'm going to continue losing weight and get back to biking and swimming and running. Now here it is October. It's been two months exactly since my husband left. I'm 8 lbs away from 50 lbs lost. My first mini goal is so close but I know it will get so much harder to lose weight. But for now I'm happy. I can walk several blocks now, my back and shoulder pain is gone, I can wipe myself now and don't have to take a shower every time I poo. Lol sorry tmi again. Chores around the house don't phase me anymore. I even dusted off my elliptical and can do a whole hour now a nice steady pace. I look in the mirror and don't see the changes yet but I sure can feel them. I'm excited to continue this new path but I really need support. I need friends. I'm hoping to find others in similar situation as me.