One word: buy some contact lenses and stfu. You're not getting older, it's just how things appear when actually the world is getting younger while you're at a stand still. A tough concept to grasp, but when you get it you'll be knee deep in poon tang.
It's a fairly typical stoner movie I suppose. Better when you're younger, pretty good for nostalgia but always a good excuse to sit around and get fudged up to.