Your FX 6300 should be absolutely fine with the 1060 in gaming task, if your doing other CPU intensive task, consider getting a better Intel CPU like a Core i5-6600. And whether you want to overclock your CPU or not is completely up to you. If you don't trust yourself or think your PSU is too dodgy, or think your cooler is inadequate, just don't do it. Overcloking your CPU is so meaningless in gaming task, it's mostly for experimenting or tinkering.