IANAL, etc...
The worst that will happen if you haven't made quarterly payments is that you'll have to pay a small penalty. And, at the income level of the average turker it isn't going to amount to much. If you want to avoid the potential penalty, you can still make a payment before the end of the year.
EDIT: If you're talking about paying your taxes, you do have until April 15th of next year. And, as
@catnapped said, the IRS will let you set up a payment plan. You're not the first person who's come up short.