Unfinished First Draft

I wrote this about 4 months ago when I was feeling especially artistic. It's a first draft of a little conversation that I just kinda made up in my head. The setting is a counselling session between P (patient) and C (counsellor) I would apprieciate any contructive criticism, and advice on how to improve it, and maybe even continue the story if people like it.
Like I said, its not finished, but here goes......


C: (writing) 23rd March, session number..... Number...... I’m so sorry; I’ve forgotten which number today is. You don’t know do you?

P: Are you fucking serious?
Wow, you really do know how to make a patient feel at home, don’t you? You must have passed through counselling school with flying colours.
C: .....Session number 4. And I would appreciate it if you didn’t say the word “patient.” There’s no such thing as patients here, okay? Were just mates, you know, having a conversation.
P: Yeah. Best buds. The fucking dynamic duo.
C: Are you trying to make me laugh?
P: Yeah.
C: Then why is that? Why do you want to make me laugh?
P: ‘Because you’re a dick!
C: (giggle) You like to rebel a lot don’t you?
P: Anarchy is the only reason I’m still alive. It’s the only thing that keeps me going.
C: Well that’s an improvement. On Tuesday you said you had no reason to live. What’s happened to cause you to change...
P: Ask me what I did last night.
C: What did you do last night?
P: I stopped myself from killing myself.
Well.... not a first.
First I did what every self respecting man, who gave a shit about himself in my situation would have done. I stocked up on Pot Noodles, and Tesco Value curries, all the cheap arse microavable food I could manage, and then went for a swim in Rutland Water. It was fucking freezing, but I figured, hey, the cramp will kick in soon, and then I won’t give two shits about whether it’s cold or not.
Have you ever tried holding your breath underwater in the bath?
Have you ever tried to do it for as long as possible?
The first 20-30 seconds are easy. But then you get to the burn. Your body starts to panic, and you begin to crave oxygen. The fear that goes through your mind is second to none. There’s nothing else you can think about. All you can concentrate on is how you’re not getting any oxygen.
The fear is pure. And it’s fucking brilliant. You don’t feel anything else. You can’t feel anything else.
And then that fear quickly turns into calm. After that initial burn, your body starts to accept what’s happening, and instead of fighting it, it goes with the flow.
I felt calm.
So fucking calm.
And for once in my life, I was able to think straight.

C: ...... and? What happened? What did you think about?
P: What the fuck do you think?