I want to start babysitting and I love kids, but I don't know how to start!

I lived in kind of a small town, so should I put an ad in the paper or what?

Please help me!!!
Do u have to be certified to babysit?

I am 14 and i baby sit i started by putting an ad in the paper it said how old i was where i lived phone # and the pay, i do 3$ an hour, people pay me more when i tell them this, trust me! the itarted making cards or buisness cards to hand out to people i new or already baby sat, also u could have your parents or something tell thier freinds with younger ones for u to babysit!