My DH suffers from anxiety it manifests itself with worrying about his health. He has been to a lot of counselling but has finally started making decent progress since he cut contact with his mum. She came across as a timid little lady, but now I realise that she was/ no doubt is, a nasty, self centered, manipulative, bitch. She has undermined him at every stage of his life, nothing is ever quite good enough, his clothes, manners, car, house, choice of uni, grades, ability to support her financially and emotionally and ability to parent his three younger brothers. She was so bad at coping that the family went to therapy when he was just 11, dad was very ill and the result was he was told to man up and support the family. His three brothers are spaced just over a year each. They have been brought up to treat him badly and expect him to pay for everything and run them around.
I didn't understand really believe in toxic parents/ families until he started unravelling in therapy. I hope that if he feels strong enough he can meet with his mother in the future but for now the distance means he is able to hear some of the compliments and praise he receives at work and home, his self worth is growing, he is starting to understand friendships and acquaintances rather than trying to be everyone's friend.
You come across as a very eloquent communicator, by the way.
A completely different thing but when I was at a low point in my life my aunty suggested a happy box. I made one. It's an old jewellery case but I squirrel away little note lets from friends and memory provoking snapshots, letters from relatives etc. when I'm feeling low I go through it sometimes and it generally helps me find a smile.
Any of these little tricks that can remind you of your value to those around you have got to be worth a try.