So the question is, what can I do while I'm young (23) that'll benefit me in the future? I have a few in mind such as saving, exercising and taking care of my body. Any others?

Also, those who have quit smoking tobacco, what got you to quit and how long did it take? I have been thinking of putting cigarettes down permanently but haven't put any real effort into quitting yet. I've been smoking for about eight years so I fear it will be agonizing. Would an investment into one of those vaporizors be worth it?