Altema

I'm new to RBAs. Im using a Kangertech subtank, the regular sized one not the mini. How do I know when its time to change the cotton and coils. About how often do they last? How often do I change the coils? What happens to the coils over time that leads them to be changed? What changes happen to the cotton that leads it to be changed? Thanks for your help!! Happy Vaping!!