My room is decently cold and with the heat lamp I have I usually get around 74-80 degrees. And he went to the bathroom the day I got him.

This brings about another question. Since my room is so cold, is it bad when I have to take the heat lamp off and the temperature drops down to around 70?

I'm also not sure how to get more heat for him. I got a different type of lightbulb that is supposed to give off more heat, but oddly enough it doesn't seem as bright as my old lightbulb and the temperature still hovers around 75-79 most of the time. But my thermometer is a little weird. Sometimes it jumps from 74 to 83 so I'm not sure what the temperature is most of the time.

EDIT: I just checked his cage and the temperature is reading 81... which is weird because usually it hovers around 77. Not sure why its hotter now. Oh also, how do I keep the humidity at around 70-80? I spray some water in the terrarium in the morning/afternoon and it goes from 50-60 to over 80 then slowly drops back down to 60ish