CTH, Having been where you are, I can not stress to you enough how important it is to change your present state to a state of being mindfully aware of where you are, what you are feeling, and just accept them in that moment, and return to the present moment where you are, for you!
^^^THIS^^^
Regret (yesterday) and worry (tomorrow) are twin thieves that rob us of today.
I've found the easiest way to introduce mindfulness is to slooow dooown. In everything you do.
Gardener
"My soul, be satisfied with flowers, With fruit, with weeds even; but gather them In the one garden you may call your own." Cyrano deBergerac