I asked you in another topic of yours to tell us where you live, county and state is fine if city is too specific. With that info we can help you find help locally.
Until then, here's some generic info. Your county most likely has a mental health crisis line you can call to get immediate help. You can find the phone number in the telephone book, by calling 411 and asking the operator for the number, or by going online and doing a Google search with your county's name and the phrase mental health crisis hotline. You can also have someone take you to the emergency room at your county's public hospital.