In her beautiful book Present over Perfect: Leaving behind Frantic for a Simpler, More Soulful Way of Living, Shauna Niequist writes about things that many of us who overwork ourselves into burnout can well relate to. In particular, she writes about living her life as if she were a workhorse, giving away her "best energy" to things that were completely outside of herself.
One of her regrets about having lived that way for years was that she had "bruised people" with her "fragmented, anxious presence." I feel that description in the depths of my being. I am a person who tries extremely hard not to have regrets and to forgive myself for not doing better when I didn't know better, but I am certain that I, too, have bruised the people I love when I have expended so much of my energy on external issues, projects, or work.
I can't go back and revise or recapture my lack of presence in the lives of my loved ones, but now I work hard every day to show up for them. I try to be here now, as fully but imperfectly as I can be.