no need to worry about power running out, I don't even see that as a possibility.
Only thing to be worried about it;
Nothing.
Here may be some of your questions;
-What happens if i OC too much?
-Will I damage my hardware if I decide i will overclock?
-Will my cpu overheat? - as some users describe it
-Will overvolting the CPU damage it? - You have a UEFI so no problem with this anyways.
Here are your answers to those;
-PC May crash and CPU may be unstable (also high temps), but this is easily fixed by going back into BIOS and changing it back, or booting into safe mode.
-You will not damage your hardware, cpu's are quite durable components and can take quite a lot of wear and tear these days, even with extreme overclocking.
-Your computer will automatically shut down to "cool off" when temps get too high, this happens just below max safe limits, so no damage is being done.
-Most motherboard BIOS's won't apply a voltage that is considered too high, that said some will and it is not always good to do so. As said before, your BIOS does this for you so you should have no issue.
Anything i need to add?