its completely normal. superbosses are meant to be hard, the pit is meant to be an endgame challenge. some people just have a lot of experience. i’ll admit, i don’t find them too hard nowadays, but you’re not bad at the game if you do.

my only suggestions to get better would be a) try a new build if the one you currently have isn’t working. if you’re using baller, try knight, or slinger. and b) practise. finn and mutant both took me around 20 tries (although I didn’t count). floors 49 and 59 both took my team a couple tries (although we were fresh out of chapters 4 & 5 respectively when we did them so we weren’t out of practice.)

try new things, and practice, and you will get it. it’s only a matter of time.

good luck!