You won't get into trouble. It is easy to amend your return, follow the instructions above. You should get instructions on where to mail your amended return but in case you don't, see the following. Use the address for the State you live in.
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/uac/where-to-file-addresses-for-taxpayers-and-tax-professionals-filing-form-1040...>
Yiu would mail in your amened return and a copy of the correct W2.
