Hi,
it's not unusual at all for someone your age to have problems with controlling emotions. You just entered puberty and while hormones that promote the growth of physical things - from getting your first period, to breast growth, they also have a massive impact on your emotional life. Some of the emotions you feel now are completely new and it's no wander you can't handle them - you didn't even have the time to get used to them yourself. You did a best thing for yourself when you simply cut off those girls, but your parents seem to need to be educated about having a teenage child themselves. I'd recommend you to keep pushing them on seeing the counselor, no matter if they want to attend the meeting with you or not. It's important for you to learn to manage your emotions and impulses now, simply because that will save you a lot of problems later in life,
if it helps, feel free to talk to me or others on the forums,
wish you all the best,
Nicole