What to do if i cannot sleep. feeling too anxious?

Try a relaxation: Technique. Breath in slowly ; deeply through your nostrils. Fill your lungs with air (but not to the point of discomfort). Hold for a count of five then slowly begin to exhale through an open mouth. Repeat at least 12 times, longer if you need to. Progressive muscle relaxation is also very effective.

See below: What are you worried about? Is it everyday things or tomorrow or things that have not been done today? As dr. Fowler said, do relaxation, establish daily routines -- they make environment more predictable, no caffeinated anything. On the nights that you can sleep, what happens that helps you drift off? Monitor yourself, keep a diary and you might be able to figure out a pattern. Good luck!