Maybe do what >>15543924 said.
I got through the original IWBTG with deaths in a little under 250 deaths on the second easiest difficulty my first time around. Some of the other games of the style are a hell of a lot harder. The vast majority of the difficulty comes down to execution, but having an intuition for what kind of easily avoidable cruel trap might be waiting just after the bend will stop you from having to do difficult sections over. Like a sixth sense for Kaizo blocks, except instead of blocks, anything can happen, and it's usually humorous.
My favorite trap in the IWBTG-like games is one of the first ones in the first games. You meet the usual Mega Man-type disappearing and reappearing blocks, and you have an opportunity to study the pattern before you get on. Once you start jumping on them, the pattern changes at the end.