> I fully agree, but it's really hard to do so even if you know that's the right way.

Yes! I agree it isn't easy to do this and I struggle daily, but haven't found a better path.

Certainly alcohol, partying, entrepreneurship, clubs, sports, travel, and adventure (the main paths I've tried) haven't succeeded in providing immediate happiness without effort on my part. (They all had their good aspects, don't get me wrong, but nothing intrinsically made me happy all the time and I was always left wondering "what's over there".)