I jog instead of taking the bus everyday, and i walk A LOT but seriously being in high school(at least where I live) TIME is limited in the sense you have it divided by others and not yourself (as you have it in college) and a couple of scientific projects I am currently leading suck time like crazy. That's why I'm thinking of taking a stimulant. Ah also there is a probability we will be school mates next year .
Going year round on albuterol seems a bit too much at least in my eyes. You exhaust your beta receptors too much, and IMO put too much strain on your adrenal glands (if I'm not mistaken alb is a beta 2 adrenergenic receptor agonist). And I am too young and mildly insomniac (at least with irregular sleeping patterns) to go to these lengths, caffeine is enough as an addiction :P.