If you are in high school, please make contact with guidance who can help get you to the right agencies who can help. Guidance can even help by talking with your parents on your behalf. I'm sorry your parents are unable to help. I certainly don't understand why they are not attending to your needs at this time. As a parent myself I can say that I would be doing everything possible to help one of my children get whatever help was necessary.

Are you a member of a church or temple ?? Often, rabbis and ministers are counselors and can either directly help you or get you in touch with professionals who can help.

Check with your school, check with your place of worship. I think another person posted some other suggestions for hotlines setup for teens. You need to get some in-person help right now.

Hang in there.