If you worked last year and didn't file taxes, you will owe a fine unless you are getting a refund back. Your parents should really be who you ask and should be able to help you get this done asap. You will still get money back if you are due a refund.
If you will be receiving a refund, a fine will not be assessed to you. If you owe taxes, penalties will accrue. It is always in your best interest though to file taxes prior to the April deadline or file for an extension which is good till October.