Hi! I also encountered this problem, and I have several methods that help. Firstly, it is very important to create a relaxing atmosphere in the room. I try to avoid screens hour before bed, it helps the brain to calm down. I can also recommend trying Liven app. It helps control anxiety and focus on breathing, which reduces stress. You can read more about how it works on techtimes.com, if you are interested. In general, main thing is to pay attention to your state during the day and not let these problems get to you.