If you are filled with worries, you may find it difficult to sleep. Ensure that these worries are set aside. What you can do is after having dinner, spend around 30 minutes to dwell your problems.
Instead of just thinking over it, try to write down the problems in a sheet of paper and the possible plethora of solutions or ideas to tackle those problems. Set aside the paper and forget about that for the rest of the night.
Try to practise the above mentioned simple tips to have a sound sleep and a qualitative sleep which will help you wake up with fresh energy the next day morning.