Im getting a ball python this weekend and im so stressed to not take care of it properly..

Ive spend sm time talking w people i know who had BP but still what worries me is the humidity and heat lamps.. I’ve never used sum and idk how ill be able to find the right temperature and aswell the change of temp at night. Do I just close the lights at night? Is there smth to make em automatic? How do I know what’s right and not when it comes to the temperature?