Overclocking also usually degrades CPU lifepsan, thus you have GOT to be careful with temperature and have a temperature monitoring program or feature.
I don't think it's worth the risk as I have PCs for many years, but hey, shrug

Water cooling is usually much the superior method but requires very good skills to do it yourself, though it's a hell of a lot easier than it used to be
There's some nice kits for it,  but you also need a good case to get best use, top quality cases come with fittings or features for facilitating watercooling

I've actually seen a PC built using COOKING oil as a coolant, whole damn cases was flooded with cooking oil, worked like a charm but not what you'd wanna do yourself, lol!!!
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