Welcome back
I am in the same situation, almost.
It's no wonder you gained weight, with everything you went through. It's so hard to keep healthy when your life is upside down ;-;
I have gone through a similar path. Had managed to lose a lot of weight, then gained back, though managed to maintain around my wedding (2014). I gained progressively (binge eater here), and 2015 onwards, life was chaos: several deaths in the family (including both my grandfathers and my husband's grandfather), work stress, trying to balance all that with a masters...so I managed to reach 170 kilos (way over 300 pounds). I am now back with a proper good eating plan, and more hopeful than other times.
Good luck with your weight loss!!