I just got my BP "Nora" form a friend about 4 days ago, never owned a BP befor and all the stuff i have was given to me, i wanna do this right a keep her as healthy as possible.

im having a difficult time keeping the tempture and humidity up

I have 250v heat lamp, ReptiTherm heater, and heat rock all on a timer (Zilla Power Center)

But the temp moves between 75 and 81 degrees im not sure i have the timer going off enough hoping some has a similar setup that can help.
As for the humidity it stays between 50 and 60 % but i cant get it any higher, i have the heating pad under her water dish and the heat lamp on the same side of the tank, i mist the sides of the tank with a spray bottle a couple times a day but i cant keep it up for any long peird of time.

thank you for any help and advice