I can relate to what you are going through. I had a pretty terrible last year too. My Dad passed away along with two uncles and an aunt.
I have gone back to support meetings, and started a regular exercise program. I had to have an unfill this past week because my band was way too tight. I had vomiting and acid reflux. Plan on returning again for a fill when things calm down. Having the proper restriction really helps me the most to put things in perspective as to the volume of food I eat. And, as always, being mindful of having all the necessary Protein in the day, plenty of Water, making good choices of food, etc., all help.
Good luck to you! I feel I have done this before (getting back on track and being successful with weight loss) so I know what to do.