Luke....you are 13/14. How do you know you are bisexual?
Maybe you are just trying to do whatever it is that takes away from the present pain in your heart?
I have noticed your posts go from one situation like wanting to kill yourself, to drinking and saying you are an alcoholic and now saying you are bisexual.
Have you spoken to anyone at your school? Any adult you can talk to and let them know you have all these things going on in your head?
I know...it is painful.
Please try and help yourself out.