The choice is yours, however I do think that you would be much better off filling your time with activities that will bring about an easier, more fulfilled life and mind. You will have something substantial to fall back on rather than to cause unnecessary, pointless and unintelligent energy expansion or to even do harm or yourself; maybe even others. If you wan to know the meaning of life, then you can look at it this way. You cannot ask what it is, because if you are the sort of person that believes in a hight power that created this, would be like the higher power asking itself "How did I come about?" and "What is purpose of the universe?" - it is simply an infinite loop of madness that there is no point in entering.
On the other hand, should you believe that there is not higher power that gave all this, then you can choose to be practical about it all and just live. For life, it self, a part of, is just about existing. If you are another type of human that sits on the fence about it all, don't worry. You can just exist and do whatever makes you happy. After all, you will never truly know. So, it doesn't really matter now, does it?
If however you are the sort of person that says "anything is possible" than you need to get on with it and do something of value because in this this you will find meaning and transcends through whatever it is. Time travel through your life by being in the flow, of no-time-awarness. None the less, no matter what your stance is in life, just do something or you may end of lying on the floor of a forest one day asking yourself if you are simply some sort of energy that is living in a body of flesh and how can flesh exist in a universe of rocks, stars, meteorites, clouds, etc.