Just make a list of rules for yourself. Can lead to some fun times eg.:
. If given the choice, always turn left.
. If it moves, hit it
. If it sparkles, hit it
. Real men charge in
. Shields are for people who get hit ie. weak
. Fire heals you
. Running in circles increases damage
. Jumping increases damage
. Every boss has a weak point, just inside its mouth, stand your ground!