Has anybody done this? I'm making an appointment tommorrow. I'd appreciate some advice

no but i would imagine it would be very helpful
hopefully they will teach you relaxation techniques and so forth
where are you from?
(edit ooooooooo spooky 666 post, about anger, oohoOoOoOO)

I'd image you don't need advice for going to an anger management class since the reason you're going is to get advice. Are you confused about any aspect of the therapy process? Have you not been to any kind of therapy before and are nervous about this appointment tomorrow? Just relax and take it as it comes, they will clear up any questions you have and you're under no obligation to do anything you don't want. Are you going for group therapy or individual therapy? I wish you the best of luck.

I was angrier when I was younger, once you learn how to control your anger for yourself the problem is half way over.

i had to take a court ordered anger management class. we watched ridiculously stupid videos and filled out worksheets.