Just to give you a little background, I am a master's level social worker.
Personally, I love social work and I think it's wonderful work, but of course I can't tell you if it would be a good career for you because I don't know you :) My advice would be to:
-Don't worry about figuring it all out right now. I changed my major a few times in college and still managed to graduate in 4 years - you don't have to have it all figured out.
-Talk to a career counselor at your high school/when you start college.
-Do some volunteer work with the types of clients you'd like to work with
Best of luck, and have fun!