I really remember it, back to the time when i was in college, i have so much tasks. I needed to attend campus club. Lots of assignment. But the fact i was happy still surprises me.
It has been ~1.5 years since i graduated from my college and got to work as a software engineer. I got decent job with decent salary (at least pretty good in my area). The workplace itself considered as a "fun" environment: sleeping pod, ping pong table, coffee machine and no cubicles. Also, workload is lighter than class assignments. But it seems like i am not happy anymore -- i don't know why. (Btw, yes, i do love coding. I do some of my pet projects in weekend)
I tried to do so much things (to try) making myself happier: Cycling around the city, playing some game with friends; but none of them seems to be working.
After all, i want to create happiness, not to "do something" or "buy something" to make myself happy. I know happiness is intrinsic and subjective. Two persons doing a same thing may perceive that thing differently.