Yes, you must file all of your income if you have a filing requirement. If your total income was roughly $13,000, then it is most likely you will have a filing requirement, but read these two articles below - the first one is for general taxpayers and the second is for dependents. If you don't meet these income level requirements for filing, then you don't have to file a tax return at all unless you want to file to recoup any tax withholding (which would be beneficial to you).
Note: While you may not be required to file a federal return, you may still need to file a state return as their requirements can differ from federal. You can view this article for more information about state filing requirements.
