On the face of it living for what makes you feel good seems great but at the end of it becomes empty and unfulfilling.
If the pursuit of truth always led to unbearable and undesirable suffering, why would anyone seek it? Similarly, if love brought only undesirable misery and pain, why would we then desire it? Doesn't this suggest that our motivation to pursue such things lies in the perceived benefits they provide?
If that's the case, could it be that the "meaning of life" we all search for is ultimately tied to some believed benefit? Should we, then, seek truth, love, and other things not for their own sake, but for ours—pursuing them only if they prove beneficial to us?
Therefore, living for what makes you feel good does make perfect sense to me, but if how you do that leads to yourself feeling empty and unfulfilled, then how you went about living for what makes you feel good was short-sided, in other words, you sought to only feel good for a short while, not trying to feel good long term. Kind of like doing a dangerous drug, sure, you'll feel good in the short term, but later on... not so great.