Freshman in high school?
Can you even get a half decent paying part time job at that age? Either way, it'd be hella stressful. Give it another month to think it over, and to see if school gets harder. If you find yourself with enough spare time to say, get on LW, then you can probably get a job.
If I were you, I'd consider taking babysitting courses if you haven't already. It generally won't require you being at a place in a repetitive schedule week after week, your income varies, and the hours you work are primarily based on your schedule.