What Are The Degrees You Have To Have To Become A Social Worker?

I am a high school student and i want to be a social worker. The type of social worker i want to be is a child phyciatris or a school guidence councler. I also want to work in a foster home; helping unfortunate kids gind good and stable home. I really want to know what are the requirements to become a social worker. Like what degrees do i have to earn if you can answer my question i really apreciate it. Thank you.