I'm sorry to hear that.
You're hair dresser sounds like a jerk; I'd find a new one.
Your situation is a bit of a catch twenty-two; you could go without a haircut, but, if you have bangs the buildup of oil throughout the day will only aggregate the problem. That said, it obviously makes you uncomfortable to be in a position of potential criticism - and there's obviously nothing good about being cut down like you were.
If you're really distressed about this (I can only make assumptions - I'm sorry if these are incorrect!), you might want to look into therapy of some sorts or a referral to a psychiatrist (if for nothing more than an evaluation). Being self-conscious, however, isn't a mental illness in its own, and if you're just looking to find some support, you've come to the right place.
I can't say much more - it's your choice. For what it's worth, I'd just get it over with - at least you'd be safe for the next few months, and you'll help prevent a more severe flare-up in your acne (at least on your forehead).
Edited by nomit, 27 December 2011 - 01:43 AM.