Path
If we assume, with the most epistemic humility, that this conscious experience as we know it is the only one we’re guaranteed, lights out = gone, or at beast something unknown. What would be the best possible use of it?
If this may be all there is, treating reality itself as the ultimate puzzle seems like the most optimal path to me. Simply move forward, cultivating the mind. Pursue meaning over cheap fleeting pleasures. Minimize self inflicted suffering and regret. Be intense in the present while keeping future optionality in mind. Feel gratitude for the probability of being able to experience anything at all, with the urgency of the ticking clock behind you.