Aregive:
i keep stuffing myself and hardly getting bigger ugh
my experience in getting fat and gaining is that it doesn't really matter what you eat - it's most important that you eat things you actually enjoy.
the thing that will make you gain weight is consistency of changing your behaviour. stuffing now and then won't make much of a difference, you will just burn those calories off on a busier-than-normal day. you need to increase the amount you eat every meal, every day.
push yourself, increase your portion sizes. eat past the point of feeling full at every meal. this will stretch out your stomach over time, which increases how much you can eat at one sitting before feeling full. it also will lead to you feeling hungrier sooner, between feedings.
most importantly, enjoy!