It's not as hard as it may seem.
Think of everything you've ever heard someone say they hate doing, and offer to do it for pay.
Also, ask for pay in either PayPal, gift cards, Bitcoin (exchangeable for gift cards via Gyft), or prepaid visa so it is easier to keep to yourself.
Bake cupcakes or mini cheesecake and sell them at school for about 75 cents or a dollar, and you will make lots of money, one time i sold two small cakes for 5 dollars and it only cost me less than 2 dollars
You can also buy small things in bulk like pretty pens or something and sell them at a higher price individually
Babysit
they will take away the more money. lol. Oh boy Parents reing. Ask your grand parents to negotiate for you.
ask your dad instead - far more likely that he is less tolerant of having an ugly child than a mother would be.
I need some money to buy some acne cream and my mom won't give me some and she has all my money how am I suppose to get one and I hate lemonade so no lemonade stands and I can't do a rummage sale