Ahhh! We have a philosopher in our midst. Living is indeed a conundrum. How to make it meaningful---right? I think a lot of the answer is existential or what I understand as existential, which is basically we have to make life meaningful. The way you do it is according to your temperament. I find my meaning in the spiritual and trying to help people. There is a huge number of options on both these areas. I'd try a couple of these activities to see if they are a match for you. There are the arts as well. Some people can lose themselves in the bliss of creativity. I'm a bit prosaic so I can't do that very well.
I'll be very interested to hear what you choose or even if you choose.
Good luck