What is your temp in room where You keep your ball ??
Zoo-med uht directly on the glass and just paper substrate could be too much You can easily burn him... (that could be rason why is is playing turtle and moving togetjer with hide what is totally normal) If You cant afford thermostat buy light dimmer so You can regulate temp of UHT.
Accu-rite temp/hygrometer is around 10 dollars and is fairly accurate... I't measuring temp in 2 pots ( placement of unit and you have additional probe) and humidity... If moving hide really bother You... exo-terra rock style hide is between 6.99 for medium to 9.99 for big. I dont see water dish in your description... You dont need nothing fancy.. regular round crock dish will do... It helps to keep humidity in right level... Make sure to change water at least every 2-3 days..
make sure that temps are around 87-90 on hot side to 78-82 on cold... humidity 55-60% (bumping to 70-75% during shed) and you Should be good to go..
Edit: Dang I'm slow writer... got ninja-ed by 4 persons![]()