I don't know weather I should do my self study for my future career or do part time jobs after school.

You see, I live in a Confucianismistic society. I feel like I have to be in the work force like everybody else in my age. However, I also feel like if I work hard for my art skills, I could have a decent job with stable income. In that case, I must do self study and practice hard. But I can't consentrate on my study because I have a feeling that I have to do part time jobs like every other being. I feel really frustrated that I am the only one not independent, working, and earning money like any other undergrads. I don't need to work because my grandmother earns 1.5 million yen (or 15000 us dollars) a month from her real estate income and gives me 500 dollars a month, meaning that I am financially stable.

What should I do after school?

Peruse in my study and training.

Or find a part time job and earn money. If so, how?