Hi Liz! Welcome to the Forum! I love it here.
I am 36 been married for 16 years & with my dh for 19. We have 2 girls (7 & 10). I can relate sort of to what you went through. My gram was like my mom and I lost her to cancer after my youngest was born. I lost it, I went into a deep black hole. If that depression wasn't enough, my dh and I hit a major major rough spot. After MONTHS of counseling & living separate we were able to get back on track thank the lord. However my weight not only stayed it continued to gang up on me. Never thought it was that bad (ok it was denial!) -- I saw photos and a video of me from our vacation last year and it just made me sick and that is when I said enough and get off your butt. So here I am today, working my butt off and actually eating healthy for the 1st time in I cannot tell you how long.
Hang in there, do your best. If you fall off, just forget that part and start over. You can do it and we are all here to help you.