Replying to Please help!

a couple weeks ago i started to get bad grades and they have been slowly declining for a while. my parents are really strict about grades and they are really upset. They've been taking stuff away from me and now they have told me I'm only allowed to live under my deck in my backyard. Its been 5 cold, dirty days of living underneath my deck amongst squirrels and raccoons. I am writing this on my moms computer at the moment while she has left the house but i don't have much time. someone please send help.