Let go of what happened today, forgive yourself for what you did, and focus on making tommorrow better. Stay away from the triggers if you can. Listen to/watch anything else you can think of (I use Looney Tunes...naturally). Make a safety plan to call someone who understands, when you feel the urge to cut. If you can't think of someone to call then post here, or go to the 24 hour support chat on www.1in6.org. They've literally saved my life a couple of times. Let us know how you're doing. We all have your back.

I went back to the doctor
To get another shrink.
I sit and tell him about my weekend,
But he never betrays what he thinks.
Can you see the real me, doctor?.
The Who