Hi, welcome to the forum and the wonderful world of snake keeping. It sounds to me like you would benefit from basically starting from scratch. Which of course, is where we ALL started, so no worries.
I would read over the husbandry 101 stickies on the forum as well as the stickies on how to properly set up your enclosure.
Some of the others have already pointed out some of the major issues, but to reaffirm some of them:
A) your temps are way off. Please get your temps dialed in and safe for your snake. A thermostat on each heat source will help with both.
B) your enclosure is too big. You CAN make it work, but it will be REALLY hard for a new keeper who isn't familiar with what to look for in the snakes behavior, etc...
C) your prey is too small, simply refer to the feeding chart above
In closing, new snakes will typically refuse food for 2 reasons.
#1 = husbandry is off
#2 = stress
Your snake is currently dealing with both. Do some studying, get your setup right, DO NOT HANDLE your snake until it is eating, and you'll be off to a great start getting on track to enjoying your new snake.
Good luck, we're here to help when you have more questions
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