Re: Daughter has trouble falling asleep
If it's something new and she has until recently slept fine, then you should search to find out if there is a trigger. Emotional trauma, stress or certain underlying medical conditions need to be ruled out.
If that all checks out, then limit screen time and make sure they are all off at least 1 hour prior to bed time. Develop a routine, TVs, computers, phones tablets and such all get turned off and put away. Turn down lights in the house. Brush teeth, get into pajamas and read a story. Done constantly this helps prepare the body and mind for sleep.
Also, be sure the bedroom is orderly and comfortable. The bed should be a place of comfort and peace, if the room is messy it adds to stress and anxiety which will interfere with sleep.