Leaving this earth is an easy thing to do, you just have to accept the fact that you are walking towards a different "journey" of life; or you may call it "going home". Yes, leaving life with unfulfilled dreams is a horrendous torture that you may deem to endure. But living life and embracing all the failures or even the little success you had experienced as man is all worth the adventure. For that defines our purpose as human; to live and experience all sorts of life.