Make the environment of your room soothing, relaxed, and comfortable. Make it dark putting all the lights off and make the bed clean and clutter-free. You can also put an oil diffuser in your room to make it smell pleasant and refreshing.
Stay stress-free at any cost before hitting the bed. Stress is one of the major issues for sleep problems amongst people nowadays. Practice yoga, meditation, stay positive and happy, and smile always to reduce your stress level.