He is probably on the cool side because your warm side is too warm. It should only be 88-89°.
You should not handle your snake until he has fed at least 3 times. Eating is their number 1 job, and handling can stress him and cause refusals.
Do you have a scale to weigh him? That would be handy to keep track of his weight and make sure youre giving appropriate sized prey. Theres a great feeding chart on this forum.
Sent from my LM-X220 using Tapatalk