I used to hide in my closet, growing up, and I've ducked into my closet at times as an adult, too. I go with our Ts: whatever works. When I stopped judging myself for doing what helped me, I was able to take care of myself more. So go in your closet if you need it! It's not like you won't come out in a while (or a day, or whatever) and continue with your adult life. If it helps you feel contained and safe, do it.