I'm no expert but will do what I can to help...
First your room temp is WAY to cold....the ambient air temp in the tank needs to be atleast 80 degrees.....I keep mine at 82 degrees.
If your room temp is higher I think the warm side temp would come up also but I could be wrong about that.
what kind of tank do you have? Is it a screen top? If it is you can go to the cage forum and find the thread on covering most of the screen top with plastic wrap and aluminum foil to help retain some heat.
also you really need two identical hides...one for the warm side and one for the cool side of the tank so that your snake can thermoregulate.
Hope this helps a little bit
I'm sure someone with more experience will jump in and help.