Here’s a neat breathing meditation/exercise I read about somewhere (sorry for this improper citation…). If you find out you really can’t stand breathing exercises, it’s perfectly okay for these to not be your cup of tea!
Sit or lie in a comfortable position, closing your eyes if you would like. Focus on your breath without trying to alter it (this can be really hard to manage, so don’t worry too much and just keep breathing one way or another). Count from one to five on only your exhales — that is, breathe in, breathe out and count one, breathe in, breathe out and count two, etc. It’s easy to lose track and go up higher, but if you go to six or ten or thirty just gently pull your attention back to your breath and start counting the exhales again.
I find this helpful to even do for a few minutes as a break while writing papers as a break from the screen and to help regain my focus. If you like this tip, stop by the office to read about the many forms of meditation out there or grab a sheet about more mini-relaxation exercises!