ditto on that!
I am very new as well but yea...up the warm side and check your humidity...should be about 55-60%. Get small hides. There are lots of ideas here on what to use. A cheap small plastic bowl with a hole in it works well. Make sure it is not clear...they like it dark.
Also and this is very difficult for me. No touchy touchy for a week and maybe try putting a towel over the cage. Also what type of bedding are you doing? No pine or cedar....can be fatal to the snake. I have heard on here that you can take crumpled newspaper and put the in the cage...it gives them more security. My bee is VERY shy. I don't think he is ever going to be a "lap" snake.
Also...just calm down...he will eat when you get everything right and he feels a little more comfortable. Balls are notorious for not eating when something is slightly off.
One more thing....are you feeding live or F/T....I switched to live because it is easy for me to go to the store here ....plus I love going in there once a week plus it is a treat...they love live. I personally would not leave a rat even a pup in with my snake....just in case it could bite them. If it is F/T...I use to thaw it and then hit it with my blow dryer right before I gave it to them.
Ok...that is about all of my knowledge....good luck... you and your snake will be fine...