Nice man, you're about to take a big step towards being a grown-up.
seriously tho its nice to know how to tune and wax your own stuff. Was it block wax or was it a can of paste wax? thats important because they are very different. we'll start with paste:
Paste wax is great in a pinch or between hot waxes. Its fast, easy, and works ok. The down side is that it only last about a half days worth of skiing in most instances and doesnt penetrate the base as well. all you have to do with it is rub a thin layer tip to tail, then buff it in going from tip to tail in long strokes.
heh heh, i said long strokes.
Now, block wax (hard wax, hot wax) is a little more intensive, but works MUCH better. Usually there are different (color coded) waxes for different temperatures for better performance (ie less tucking to get speed to clear jumps). To start tuning your skis with hot wax you need 4 things: Wax, WAX iron, scraper, and base cleaner. You should look into a vice too, but you can get away with a couple peices of wood. OH SHIT, and rubber bands, to hold your brakes down. dont forget that.
*Be sure to BUY A WAX IRON at your SKI SHOP or online.. if you must. A household irons temperatures fluctuate too much and you can actually separate your base from too much heat. Plus your mom will be pissed theres wax all over her lingere. Trust me.
*Now, rubber down your brakes so you can run the iron from tip to tail with no interuptions. (watch that guys tutorial video)
*dribble a little wax from tip to tail (you dont need to use a ton)
*smooth w iron
*scrape off ALL the excess. its not wax on the surface that does anything, its the wax thats penatrated into the base material that makes you faster.
heh heh... i said penetrated.
Good luck, if you have any questions lemme know I tuned skis for a good number of years for a living. Rock on!