Hello Thalia! Congratulations on your upcoming graduation. Celebrating this milestone at Walt Disney World is an awesome idea. If you and your friends are able to split a room or two, that will certainly save you money. If the total number in your party ends up being six, I would suggest you look into the suites at Art of Animation resort. I vacationed at this resort with my daughter last summer for her sweet 16 celebration and she and her friends thought it was a perfect choice. The suite gave them a little elbow room - as well as two bathrooms! If you end up with seven in your party, this won't work as the capacity for the suite is six. However, you can consider two rooms at one of the value resorts (Pop Century, All Star Music, All Star Sports, All Star Movies). When making your reservation, be sure to mark the occasion on your reservation so you have celebration buttons waiting for you upon your arrival!
To make this more affordable, check the
Special Offers page for discounts that may be available for your travel dates. There is currently an offer for stays between June 13th-August 14th that you may be able to take advantage of.
As far as making the vacation memorable, that will happen just by being with your friends! You may want to pick out a special dinner or two (either with characters or without - let us know if you need suggestions) and let Disney know when you make this reservation that you are celebrating a graduation...you never know if a special surprise will come your way!
Have a blast and let us know if you need additional assistance.