I would never brand myself or be a part of the cult though (claiming that one is better than the other or that everything said is holy). Even though one of things religions are good at is to also be to give people a sense of belonging to a community with similar virtues.
One of the mental models that has been particularly beneficial for me is the EightFold Path (also called Dharma Chakra or Dharma Wheel) that comes from Buddhism.
It basically says have the right view, thoughts, words, concentration, effort and action. Practising this keeps me in a virtuous cycle and makes feeling good feel like a self-fulfilling prophecy.