First you come to terms with it, which is where you are now. Then, you start to learn what else can get you as passionate as dance does, do you have any other hobbies or interests? That is where you start, think about other stuff that you like, do you like animals, kids, science, poetry, etc. Get involved more with another hobby or interest, don't give up on dance, but shift your focus. If you like writing stories, find a way to join a creative writing group, if you like books, join a book club. What was your fall back, if you had one? Were you planning on majoring in dance in college, if you wanted to attend college? If not, think about what you wanted to major in and why you chose that field. Maybe do more research into the topic or subject to see if that really holds your interest maybe you will discover something new related to it, that brings you fascination or joy.