Is this insomnia? HELP!!?!

Is this insomnia? HELP!!?

I am 15 years old and I can recall having this problem since I was about nine or ten. Maybe I had it earlier but I can't recall properly. OK, so this is what happens. Even if I'm dead tired and my eyes are kinda achy, I don't WANT to sleep. I don't know why this is so. Even if I get into bed by, say, 9 pm, my brain keeps wandering and I just can't get to sleep until some hours pass me by. When i was eight or nine, I could stay up all night during sleepovers and then not feel sleeping until nine or ten the next morning. It's just weird.
I have tried counting sheep and all those things. There has not been one day I can recall when I woke up refreshed, even if I woke up at 2 in the afternoon. There is always a slight strain on my eyes and a very slight headache. Maybe it's like that for everyone - I don't know. By the way, my eyesight is pretty good, so that's not the problem.
I don't know if this matters, but I am usually good at remembering my last dream very vividly.

4 weeks ago
When I was eleven, my sister had her friends over for a couple of weeks and they used to stay up and play guitar and sing songs and do fun stuff like that. I had to sleep because I had school the next day. I hated sleeping.
But I had the problem before that. Maybe this thing made it worse.

So, what was going on when you were 9 or 10? Sometimes people won't sleep because for some reason they feel it's important to stay awake - to be aware, to not be unable to respond to something. For example, someone I knew fell asleep while riding in a car, and there was an accident. After that, she had trouble going to sleep.
Ask yourself why it might be important to stay awake. Listen for whatever 'answer' you get and work with that.
By the way, the standard thing to do with insomnia is to have a regular ritual before bedtime that calms you and prepares you for sleep. Then, go to bed at a regular time and get up at a regular time. Avoid caffeine and other stimulants. Exercise in the morning and not late in the evening. Watch your diet - too much protein late in the day can delay sleep.
Last, but not least, seek professional help - see your physician and maybe see a counselor. You shouldn't have to go through life sleep-deprived.