Getting a haircut!

[anima-maxima.livejournal.com]

So right now I'm enjoying St. Petersburg very much, but my hair is getting shaggy in an intolerable way. I speak Russian pretty well, but haircut lingo is beyond me and I can't find much in my books. I'm looking to say the following:

I use a flat-iron on my hair.
I have an angled bob. It's longer in front and shorter in back.
Can you please reshape the back of my hair?

Thank you in advance! :)