Do they have meetings for this?

Hi, my name is April and I am an insomniac!!
Ever since I can remember, I have been a night owl. I have pulled many all-nighters - one just last week! Why I have trouble sleeping at nights, I really don't know. I don't drink a lot of caffeine, only the natural amounts in the teas I drink. I don't drink pop (New Year's resolution), and I am not stressed! My days are busy ... full of errands, play dates, lunches out, shopping, etc ... There is rarely a day when me and the boys stay at home. I am a mom who likes to keep myself busy. When I lose momentum, I lose motivation.
There is one thing that I love most above of all other things on my to-do lists .... bedtime!! Not only for my boys ( ahhhhh .... peace and quiet for me!! ), but for myself. I love crawling into my bed with my big fluffy pillows and oh-so-soft comforter. My body just melts into relaxation and I know my poor feet appreciate the break! So why can't I just go to sleep???
My doctor has told me to make sure I turn the TV and the computer off at least two hours before bed, and to basically find a good book to read in bed with soft lighting. I guess boring myself to sleep is an option, but my mind always leads astray with the 'Oooh, I should watch that show I recorded a few nights ago!' or 'I need to update the boys' website.' When my mind gets fixed on something, I can't let it go! My brain won't shut down and I'll toss and turn all night long. I'll get a renewed source of energy, and will want to get up out of bed to work on projects, or watch hours of TV because the remote is in my hands - no sports, or kids shows.
The only time I will get a full night of uninterrupted sleep, is usually when I am sick and need to take Nyquil! That stuff knocks me out (and cures me of my colds, too!). I am not into taking sleeping pills, or unnecessary medications, but I need to get on a better sleep schedule!!! I have briefly looked into herbal remedies, such as Valerian, but haven't heard of too many personal experiences with it. I seriously don't know where I find the energy to go about my crazy days that I have EVERY day. I can only think that a burnout will be up ahead, and I really don't want to see that happen. I hear about all the health risks that lack of sleep can cause, and I want to make sure that I stay healthy - not only for myself, but for my family who depend on me so much.
Does anyone have any advice? After reading this loooong blog, I have probably put you all to sleep!! Ha,ha!!