Best way to get ride of this complain is that you change your routine. 1) eat your dinner before 3 hour of your sleeping time.
2). Drink luke warm milk without
sugar before 2 hour of your sleeping time.
3) take a bath before going to bed and brick walk for 10min to listen any motivation vedio or music. No vedio on mobile or tv. And after walk read you study book or any novel. Keep this above idea for 1 week. Might be you feel changes in your sleep. Any habit take 21 days of time to completely follow.
Next Steps
further you can add homoeopathic medicine along with that you got good result.