Stuffing

I recommend just eat as much as you want when you want. If you eat like that everyday you become able to eat more and more. You be surprised how much you can eat before you feel full if you're used to eating a lot in one sitting. Trying to overdo it too much now might not be a great idea. Ease into it. Just my opinion

I have somewhat of the same problem, when I eat I get to a point where my mind says I'm still hungry but if I eat more I puke, should I just get to a point where I bloat myself with liquids once I hit that point?

I find just stuffing with white bread and liquids (when I want a nice full bloated feeling without spending too much cash) after repeated for a couple of days leads to a near bottomless stomach capacity. Managed to go to resturants, and by the time everyone else has finished eating, as well as me, I still had room for a venti double chocolate fudge frappichino at starbucks and a slice of brownie. Just loading on carbs and getting that stomach full will increase capacity, trust me.