Yes, age doesn’t matter. When you file your return be sure to check the box that says you can be claimed on someone else’s return.
That sounds like self employment income. Did you make over $400 total for the year?
Even if you're a dependent, you'll generally need to file your own 2017 tax return if:
But even if your income falls below these filing requirements, you'll want to file one anyway if you wish to get a refund for any taxes were withheld from your paychecks.