3 Fat Chicks on a Diet Weight Loss Community - Stressed/nutritionally deficient/lazy weight gain

Hello, I'm new here and wanted to introduce myself. I'm 48 and over the last 18 years (when my first child was born) I have gained more than a hundred pounds. Since February, I'm down more than 30 pounds, so I'm still up 60+. I don't want to get back to <110 pounds as I feel like when I was thin, I wasn't really healthy (I was too thin for my frame) and I also don't think I'm motivated to get to and maintain that super skinny weight.

But I feel like there are 4 reasons I'm so heavy:

1. Was very stressed for several years being the primary caretaker for my aging aunt (who moved into my dining room)and then dealing with an adopted child with reactive attachment disorder. I'm not a stress eater, i just think the stress kept the weight on me.

2. I also had 4 pregnancies (including one still born child). During those pregnancies I vomited around the clock and lost lots of weight each time. My body was in starvation mode. Post pregnancies I was really hungry and so I ate. I think it was my body trying to get back some of its mineral stores.

3. Really crappy eating. I drank so much Diet Coke and diet iced tea and refined carbs (bread, bread, and more bread) that my blood sugar was crazy.

4. I'm terrible at exercising. I got a fitbit last year and have been pretty good about 10k steps at least 3 days per week, but I'm trying to get that up to 5. We have an elliptical so I really have no excuse except that I'm lazy.

I'm here because I really love to hear people's experiences with different supplements that they are taking as I feel my starvation/vomiting pregnancies have been the biggest contributor to my weight gain. I also need the motivation to exercise. The way I look at it, I'm not just losing weight, my whole body is healing.