Your budget won't get you very far, but with careful shopping will be OK. Figure out what your priority is and see what is available used in your area. Find a ski swap that caters to race gear (call around), not one hosted by a ski shop. Right now everyone is testing out gear for next season, so this is a good time to be shopping. How big are you and what are you racing? I'm assuming that you are a relatively new YSL skier, so races will mostly be slow GSs with maybe a kombi and a slalom or two. If that is the case, find a slightly short, springy GS ski that still has some life left. I would avoid used Dynastars or other foam core skis if they feel soft. Fischer. Head, Volkl are worth a look, probably Nordica too. In my experience they are good for only about a season. For an all mountain ski, I don't think it matters that much. Find one that has some camber to it, can carve, and is in the 95-100 mm width underfoot assuming you are looking 160 or shorter.
If I'm reading your post wrong and you are an age class skier, you need a good pair of slaloms and a good pair of GS skis. Talk with your coaches and see what might be available in the program, and see what reps serve your program and ask if they have any demo inventory or skis from last season they can sell cheap.
If you are planning to race make sure you have a stickered helmet (FIS RH 2013), and if not, budget for one.
Article on lifespan of ski gear: http://www.skiracing.com/premium/backshop-can-your-gear-last-another-season
EDIT: You wrote that you were 14, but for some reason I read U14. So as a U16, I would have to amend my answers somewhat.
Edited by billgreen - 5/4/16 at 10:27am