How much about would a 3 day trip to disney cost. (estimated price plz)?

Im 13 and im looking to save up some money to eventually take a 3 day trip to disney with my mom. She made the deal that i only have to save enough money for myself and then she would pay her way. (the reason y i have to save money to go is because there is 6 ppl in my family and we usually all go together so now that i want to go by myself i have to pay). But I want to know an estimated price for 3 nights in the disney resort hotel, pes to disney, and airfare. I looked it up online but there was nothing that i wanted like they included sea world and universal, i just want disney. So how much about do u think i would need?