Hello,
If you really love dance, you should dance. Find a way. You know all the resources available to you, but here are some ideas:
* Get a part time job
* Talk to the staff at your high school. If they do not have any dance programs, you might be able to take classes at another high school.
* Talk to the owner of the dance program you used to be a part of. Maybe there are scholarships or grants? Maybe you could do some reception/admin work for them in exchange for a reduced tuition?
Their are tons of other options and your life will change so much when you graduate high school that what you are doing now is only temporary.
Take advantage of the resources available to you and keep asking around until you find something that works for you.
What other reasons exist other than financial?