I'm going to hide weed from my parents
Why do you think you need to hide it from your parents?
Because I hate it when they try to control me.
I understand that you don't want to be imposed upon by your parents, but hiding your drug usage from your family isn't right. Not addressing your drug usage will lead to trouble down the road.
I know what I'm doing and I don't care, they can't tell me what to do.
I don't know how old you are, but weed is not good for teenager's brains. If you're not a teenager, you should probably just be honest with your parents. Pot is legal in more and more states, and isn't always that big a deal anymore.