Welcome ☺
First off, don't use bleach. Use something non toxic like vinegar. I use both, a light and mat. I feed my corn every weekend and I feed mine 2 fuzzies. Yours is bigger so you might be able to go with hoppers or rat pups. The substrate kinda depends on your location and humidity as does the misting. I handle mine every chance I get except for a few days after feeding as handling after feeding can harm the snake.

A little tip, post lots of pictures, both for more informed tips and, everyone loves pictures