Why do i take a long time to fall asleep?

Because you are thinking about how long it takes.

Your mind is wandering. I bet you're thinking of everything you have to do the next day, aren't you? Try writing everything down about an hour before you go to bed, in detail. In this manner you get it out of your system. I'm a list person myself, otherwise I constantly make mental lists. Get a nighttime ritual. Go to bed at the same every night. Drink some tea, brush your teeth,etc in exactly the same order every single night. Your mind will know that it's almost time to go to sleep and prepare itself to shut down. Avoid mentally stimulating activities like the internet or watching tv prior to bedtime. Try reading a book to relax. I stick to light fiction. It also gives you something else to think about as you drift off to sleep. NEVER have a tv in the bedroom! Waking up is not a problem, not being able to go back to sleep is problem. If you're just waking up but going right back to sleep, it's ok.