Try questioning everything you [mostly unconsciously] believe. This is how do you behave in particular age/status - why? This is what happens when you die - why? Stop believing anything (except that you should generally avoid hurting other people) and have fun. Life is just a role playing game with cool gfx, massive lore and unbalanced mechanics - beat the hell of fun out of it and stop believing you know what's there after it ends. Being lost means having wrong beliefs. We don't know the true but we can give up the wrong (even the whole scientific view is wrong as a belief - it's just a practical picture, the foundation of real science is knowing no theory will stand forever) and face the world with curiosity and awe.
By the way, the idea about science I expressed here triggered another one in me - perhaps we should start giving grants to scientists for exploring the theories/papers currently supposed to be true and working on disproving them. This seems an important work to improve overall quality of the entirety of scientific knowledge.
