I can definitely relate. After my husband and I split up seven years ago, I purposely let myself go so that I wouldn't be attractive to anyone. I was making sure that I wouldn't hurt "in that way" again.
That self-talk is really a doozie! We make and break ourselves with it. I had a "friend" (turned out to be a wolf in sheep's clothing) that was a recoving addict. She'd get up every morning and as she got herself ready for work, she'd tell herself "I love my self... I
love myself...
I love myself... I love
myself!" (UGH!) It worked for her! She also countered her self talk. "Oh, my butt is so big" with "My butt is getting prettier and prettier every day." She'd look at herself from one direction and then the other and totally admire herself! I think you've got the picture.

Eventually, she did go on a diet and got really thin... almost pretty. One of her favorite sayings was "Fake it till you make it."
Work on that self talk, ok?
<font color=blue>"Our doubts are traitors and make us lose the good we oft might win by fearing to attempt" --Shakespeare</font color=blue>
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.