What do you do if you feel suicidal and don't have anyone to tell?

I want to become a male but I'm trapped in a female's body. I recently saw "Boys Don't Cry" and everything Teena felt I felt. Becoming a male would make me truly happy but I'm hopeless and desperate for a first step to take. I only cross dress in privacy and around my close confidants. My mother would die if she found out. Lately I have been feeling suicidal over my complete and dire unhappiness and uneasiness. PLEASE HELP ME!

I have sensitive hearing. This is a major problem when I am trying to go to sleep. I find myself singling out every noise. Currently, I live in an apartment close to a major ventilation system. I can hear a very low frequency sound coming from it. It wouldn't bother me except for the fact that it is a random, consistent noise. Think of a ticking clock that doesn't tick at an exact rate, but ticks once, twice, maybe three times every second.

However, my roommate cannot hear this sound and my girlfriend can only hear it if she really strains to. Myself, I can hear it over music, TV, running water, etc...

I am beginning to envy people with hearing disorders. I am at the point I'd be happy to be deaf.

My question is: Is there a way to decrease my hearing ability at least in the lower frequency range?

Thank you.

Recently, I've noticed that my one or two of my friends have taken to cutting themselves. I'm concerned for them... but I've done the same thing in the past and they know it. How do I confront them without sounding like a hypocrite?

In the past I have self-mutilated and recently there has been a lot of added stress to my life. I've heard about wearing a rubber band on your wrist as an alternative. I was just curious are there any downsides to this method, as an example I have been doing this for a week now and I have gotten a bruise on my hand, it probably isn't from me snapping the rubber band but I was just wondering if there is anything I should know about this method? Thanks