It's great that you want to get out there and earn your own money.
You're too young to legally get a job anywhere.
But you could pick up aluminum soda and beer cans and sell them at a scrap yard if you have one.
Though you might need someone 18 or over to go with you to collect the money as state law forces the scrap yards to collect ID and signatures from scrap metal transactions.
Though some will not require you to if you're only selling cans.
If there is snow in your area you could also shovel snow for people.
I shoveled snow when I was 12 and earned $70.00 in one day from people.