With current events effecting everyone in different and many ways, stress and anxiety levels for most people are understandably higher, the best thing that has worked for me now and in the past are:
Breathing exercises
Here are a few techniques, I encourage everyone to try just a few minutes a day to do a technique that feels good to you, its a case of experimenting as everyone is different but the rewards are worth the time.
Deep Breathing
Most people take short, shallow breaths into their chest. It can make you feel anxious and zap your energy. With this technique, you'll learn how to take bigger breaths, all the way into your belly.
Get comfortable. You can lie on your back in bed or on the floor with a pillow under your head and knees. Or you can sit in a chair with your shoulders, head, and neck supported against the back of the chair.
Breathe in through your nose. Let your belly fill with air.
Breathe out through your nose.
Place one hand on your belly. Place the other hand on your chest.
As you breathe in, feel your belly rise. As you breathe out, feel your belly lower. The hand on your belly should move more than the one that's on your chest.
Take three more full, deep breaths. Breathe fully into your belly as it rises and falls with your breath.
Breath Focus
While you do deep breathing, use a picture in your mind and a word or phrase to help you feel more relaxed.
Close your eyes if they're open.
Take a few big, deep breaths.
Breathe in. As you do that, imagine that the air is filled with a sense of peace and calm. Try to feel it throughout your body.
Breathe out. While you're doing it, imagine that the air leaves with your stress and tension.
Now use a word or phrase with your breath. As you breathe in, say in your mind, "I breathe in peace and calm."
As you breathe out, say in your mind, "I breathe out stress and tension."
Continue for 10 to 20 minutes.
This is just 2 but there are many more you can do on google and youtube and trusted medical sites.