No problem, you are welcome, most of us miners and ex-miners went through such mistakes in the early stages, as said, happens 
If you really want to mine with your gpu’s, you can, no need to give up allready. You just should mine gpu coins and not “asic coins”. There are plenty of gpu coins you can mind and if you want to get ZEC you can exchange them for ZEC in the next step in case ZEC was your priority goal to achieve through mining.
IF it was profit, as said, try some other gpu coin Beam, Grin, Raven, Monero, whatever, plenty of possibilities.