Answer:
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves everyday
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
I am alive without breath and cold as death. I am never thirsty but always drinking.
I let water fall on you while everyone else stays dry. What am I?
A caribbean shape that makes ships disappear.
No matter how little or how much you use me, you change me every month.