Why cant i sleep properly?!

Best Answer - Chosen by Voters

Common sleep aids include Melatonin, Chamomile tea, Valerian, 5-HTP and warm milk.

Could be a lot of things. However, there are a lot of things you can do to help.
First, make your bedroom your sanctuary. Make sure it is as neat and clean as possible. No clothes piled up, no jumble of books by the bed, etc. Your bedroom should be reserved for sleep and sex (if applicable) only. Make sure your bedclothes are clean, comfy, and fresh. A lavender sachet in your pillowcase or bed-linen spray may be calming. Keep your bedroom cool, and use a humidifier to keep the air from being too dry. Some people enjoy a fan on low.
Eliminate all electronics (even, and especially, your cell phone) from the bedroom. The magnetic waves they emit disrupt sleep. Turn your clock facing away from your bed, or cover it. If possible, eliminate all light. Any light, even a nightlight in the hall or bathroom, will hamper your body's production of melatonin, the sleep hormone.
To ready yourself for sleep, you can try taking a warm bath an hour before bed. Stop drinking beverages containing caffeine early in the afternoon or evening, at the latest. Do not exercise in the evening, that increases alertness.
A couple of hours before bed, limit beverages to prevent night-time trips to the restroom. A cup of herbal tea (such as Sleepy Time) or milk before bed may help make you drowsy. Don't go to bed hungry, but don't eat a big meal close to bedtime.
Do not use your computer or watch tv close to bedtime. The light, again, suppresses melatonin. Shut off as many lights as possible. Read, with just a reading lamp by your chair, or knit, crochet, or do any other relaxing, calming hobby you like.
Keep pets out of your bedroom. As much as we love them, they can keep us from getting a good night's sleep. Go to bed at the same time every night. If you aren't asleep within 20 minutes, get up and continue reading, or whatever, until you feel drowsy, then try again. Get up at the same time every morning, no matter how much or little you slept. Open the curtains or get outside in the sun as soon as possible, that will help reset your body's internal clock.
If all else fails, you can use a Melatonin supplement to help you get on schedule. They are available wherever supplements and vitamins are sold. They only work for about 3 weeks, then you need to take a two-week break from them.
These tips should help, they have worked for me before. Good luck.

Fellow insomniac.