Guaranteed

If you're looking for guarantees, then this life is not the place for you. Please move along.

If you feel like you have only been alive for 20 minutes, as opposed to 20 years, then you might be one of us.
If you have dreams (both asleep and waking) that are indistinguishable in your mind from true memories but for your own conscious knowledge that the true memories actually occurred - you might be one of us.
If sleep leaves you tired, feeling displaced, unrefreshed, and whispering in your head as to the reality of the place you have awoken in - then you might be one of us.
If a life of doing things you do not care about for the better portion of your days seems insanely depressing, you might be one of us.
If your eyes are continually drawn to the sky, as if reading cosmic headlines, you might be one of us.
If when you try you only find failure, but when you do not try you find success, you might be one of us.