I've used pregnancy to eat as much as I want...

I'm 33 weeks pregnant and I've basically engorged myself in food the last 5 months of this pregnancy... as I'm nearing the end it's sinking in that I'm going to have to lose all this weight...and how much it's gonna suck is really sinking in... I've gained 38 pounds so far and have another 7 weeks to go so I'll more than likely hit 50-60 pounds of a total weight gain... I know this isn't healthy for me or the baby but it seems like all I do is think about food! I've never had a weight problem before so I don't know what happened 😬 someone please tell me that breast feeding really does help or is this gonna be as hard as I think it is?