What's your version of 'chasing the dragon'?

Ok, so the origins are a bit dark, but never mind that. It's a cool turn of phrase that I want to keep alive.

'Chasing the dragon': plowing through any task past the point of diminishing returns, with disregard to one's own health, sanity or well-being; doing everything you can to obtain that same 'high' you got from the first time you tried something, but never quite getting there due to the body developing tolerance; originally in reference to feeding an opium addiction, but now refers to any drug.
Whats your version of chasing the dragon?
Mine is trying to find another great song, after just serendipitously discovering one. But the next one is reaaaally hard to find. I should really give up.
What's your version of 'chasing the dragon'?
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