Alright peeps right i need some advice, i weigh 9 and a half stone atm

and i want to get bigger but not arney size
i have been told that creatine is good for body mass but i am going for the more defined look.
I have been told amino acids is what i should use instead of creatine combined with protein shakes
I have already tried eating regular intervals, honestly i eat more than a horse and i never gain a pound
I eat chicken etc all the time and protein shakes before the gym but i am looking to order a new batch of stuff which is tastyish to get me started, plus is the right thing to use
many thanks