First of all, that is amazing and wonderful that you've been able to save up what is a considerable amount for your age! You seem to have great savings discipline, which will serve you well into your adult life!
I just got back from Pop Century (value resort) with my daughter who is 16. It was just the two of us this trip, and we both loved the resort! The theming is super cute, and we didn't need additional amenities like room service or queen beds. Even if you have the money, you may not want to spend it all on one trip, so I'd say start at the value places, and go from there. That being said, the beds are double beds, so if you're sharing a bed keep that in mind.
You may also want to check out the Swan and Dolphin if you like the Epcot resort area. Swan has queen beds, Dolphin has doubles. I prefer the Swan, but you lose some of the Disney theming.
You may want to rethink deluxe dining, unless they offer free dining during your trip. We had free quick service dining, and still couldn't eat that many meals. We shared several times, since the portions are quite large! We ended up with 4 meal credits left over, and 2 snacks, so took home 14 bags of various candy as a result. It would have been a waste if we had paid probably. For free it was great, though.
If this is your first trip, I'd plan a couple of special meals, but sit down dining takes a bit of time out of your schedule. There are lots of good counter service places with nice choices as well.