My kids built up a business for themselves without my knowledge. They used to cycle around the district until they saw a house with an untidy lawn then knocked on the door and offered to cut it. They used the people's own mowers and petrol and, at first, they took whatever money was offered. When they got a bit more experience they knew what price to charge. They did pretty well and they were both under 15.
Typically anyone under 15 can't really get a 'real' job. You could look around you area for maybe walking dogs.. But it is pretty cold for that. Or maybe babysitting for people you know. Depends on maturity and if you're responsible. But you probably wouldn't get a serious job.
1. dog walking business. 2. babysitting business. 3. do chores. 4. allowance ( your parents can give you money every week or so). 5.going and help your mom or dad at work, 6.sell homemade charms or earings (stuff like that) . 7. lemonade stand 8. yard sale. These are ways to earn money.
At 14 I started cutting firewood and selling it. I made $1000 my first year and now I can make even more. The only problem is getting all the equipment needed, I started out with some basic equipment. Then my business grew and I could afford new stuff. Remember, you gotta spend money to make money.