Pre-teen Money Making?

I'm 12 years old and in the 8th grade and im always broke, i hate having to ask my parents for money because they usually just carry credit cards. I would do babysitting but my sister gets all the babysitting jobs since shes older. i wish i could get a job but im too young. i want to become more independant and i would be so grateful if you gave me some job ideas that a kid my age could do. Please help me!!