i feel emptiness

At the age of 15 i started to learn about philosophy and any interesting topic.At first i only learn it just for fun and to make myself someone that cool but after i learn more of it,i started to see our world and religion differently.it seems like everything so pointless and my life isnt that precious like i always been told. And now when i already being 17 i begin to smokes and do anything to stop thinking about this world or after we die etc So i just want some advice how to deal with this...