We can wake ourselves up by increasing our oxygen level by breathing deeply. Or conversely, we can put ourselves to sleep with a kind of meditation of shallow breathing, and repeating silently the words to the rhythmic "in" and "out" like a mantra.
You cannot let your life circumstances run you over and make you submissive to them. They are circumstances. While they are often unfair, challenging, or difficult, they are merely circumstances. And circumstances change.