Controlling your emotions and always understanding yourself is very important, especially now. You can be sad, happy, excited, or depressed, it doesnt matter. The thing that matters is how you interact with these emotions because even when you are happy you need to be able to let go of this happiness and not try to prolong it artificially because there will be consequences. Meditation is a perfect solution to this. It will help you to relax and calm down. Freeing yourself from emotions and thoughts is an important skill that we need to master.