Am I depressed--should I call Suicide Hotline?

Every time my parents even talk to me I feel like I am going to scream. They make me so upset. Just moments ago they SCREAMED at me because I didn't study for my Spanish exam tomorrow. Mom stated that I would not be allowed to live in this house if I don't graduate and that I should get used to being so alone because that's where i'm headed. I felt like looking up ways to kill myself that are fast and efficent. I hate this. Is it best to call Suicide Hotline?