Having humidity problems with my new Ball Python

[The Golem]

I just turned off my heat lamp and now just gonna hope and pray my heating pad will suffice enough to make the hot side hot. Does it really need to be at 90? And what's a minimum for a cold side? I also would like help on keeping the temps high enough without using a heating lamp and tips for my current set up above please and than k you!

The surface of the glass above the UTH should be 90, not the air temp.

Get something - very small hide, or enclosure ornament (eg small skull), or little cup and stuff it with damp sphagnum moss, that will help with humidity. It's winter, the ambient air is going to be dry no matter what.