If you do a good job as a tutor, you can earn 500 yuan twice a week 1000 yuan a week, 52 weeks a year, and you can earn 52,000 yuan a year.

So you don't need four years, maybe one year.

Or if you do part-time sales and then sell a product with a particularly high price at once, then your commission will be high at this time. You may have earned tens of thousands of yuan in just a few months.

Or if you go live, you may earn hundreds of thousands directly in half a year.