I Need serious help?!!.

The Very first time i was admitted into hospital i started harming myself in a waiting room and reception called security on me to come and watch me. And then the police confiscated my blades from me, i will be doing the same thing tommorow aswell i wont give up until i am assessed to be sectioned. i just can't keep going on like this everyday i have tried all the help in the world and i just keep getting Rejected by them because the help i get is not good enough and the NHS services need to be more helpful but there not and it's sad really?. i know being sectioned is not nice but its my only last resort as i refuse to take my medication and im refusing the help i recieve because at the moment the NHS dont have a clue how to help paitents properly which makes me really mad. If they dont do something soon i will be 6 feet under in my grave and thats a promise not a threat!.