My mum formula fed and she was a $hit mum. Not because she formula fed though!
Life is like a hamburger. Whether a person turns out to be a bid Mac or just a cheeseburger depends on many things. If you don't have the sauce on the bottom then you can more than make up for it by adding bacon, cheese, beetroot, gherkins or whatever you want later on. You create the burger over a period of time, not at the beginning.
I can tell by what you type that you love your bubba and will do everything to ensure bubba turns out to be a Big Mac.
Hang in there, be proud of what you've done thus far and enjoy your little munchkin xxx