Is there any way for me to start my own "buissiness" as such a young age?

I'm 14 and I really want to be a baby sitter and start my own baby sitting service with just me. Is there any possible way anybody could suggest I can do this? Like can I make my own buissiness cards and All that stuff even though I'm so young? I'm very responsible and great with kids?

u can be a bb at any age; please do not call it a business YET, not till you are age 18.

no biz cards!!!