Mindfulness is an act of hospitality. A way of learning to treat ourselves with kindness and care that slowly begins to percolate into the deepest recesses of our being while gradually offering us the possibility of relating to others in the same manner. Working with whatever is present is enough. There is no need to condemn ourselves for not feeling loving or kind. Rather, the process asks us to entertain the possibility of offering hospitality to ourselves no matter what we are thinking or feeling.
[Today] try taking some time to explore the possibility of sitting with yourself as if you were your own best friend. Dwelling in the awareness of the breath, allowing thoughts and feelings to come and go, experiment with the possibility of embracing yourself as you would embrace another person who is dear to you and needs to be held. If you like try silently repeating a phrase on your own behalf. You might offer yourself one or more of the following: “May I be safe”. “May I be free from suffering”. “May I be peaceful”.
Saki Santorelli, Letting Ourselves Heal
Mindfulbalance 
Funny how difficult it is for PTSD suffers to even entertain that they are fine not damaged goods. A low self image along with guilt, shame and blame make up a damaged self worth.
Self talk is the place to change the negativity. In the shower in the morning observe where your mind settles. If you see negativity, gloom and doom then a change is needed. Add affirmations everyday and never utter a negative comment or harbor any feeling of negativity.
Change your minds axis to positive. Staying present empty of thought let’s all the negative fade.
“What fires together wires together” as RickHanson wrote inBuddhas Brain. Where we direct our attention grows What we ignore withers. Simple!