I do have stocks but I didn't sell any of them they did gain some interest. do I still have to report it on my tax return?

No, you only report stock when you sell it. However, you may receive a form 1099-INT or form 1099-DIV. Check your financial institution account, for year end statements, to see if you'll be getting either one of these forms. 

For additional information, see the following TurboTax FAQ: When you sell stock, the money you make is taxed as capital gains. How much you’re taxed depends on a few things, but the length of time that you owned your stock is the biggest differentiator.

some stocks produce dividends.

Report Form 1099-DIV on your tax return.

If your cash earned interest, report Form 1099-INT on your tax return.