Oh, sister from a different mother and father :) I so can relate. It seems to me that creatives are maybe even more impacted by the feeling of somehow not belonging. Often, that search seems to be the factor for wanting to create.
Good for you that you are on the Yoga mat every day. It does make a difference. and why motherhood never ends, pretty soon, it will not be quite so physically demanding anymore.
Being a parent is such a journey!
Hugs and love to you.