Anxiety comes in many forms but usually the same end result. Social anxiety and add to that perhaps low self esteem as it appears in your case deserves short medium and long term plans of recovery or development.
Thats how it was told to me some 32 years ago and now I’m living an anxiety free life, it was worth the effort.
So the multi pronged approach can include-
Short term- introduce therapy via your GP, read articles on the www and carry out deep breathing exercises and muscle tensioning exercises and any other exercises assigned to you by your professional medical staff.
medium term- seek less stressful employment meaning no shift work, no food sales, no customer service.
Long term- a quieter life maybe a move to the country, carefully selected friends, protection from aggressive or manipulative people. Career fulfilment.
The main message here is to accept that, without effort your anxiety won’t heal itself and will worsen leading to more withdrawal and even depression..
To get more detail about this I have some beyondblue threads you can read. You only need to read the first post of each.
beyondblue topic anxiety, how I eliminated it
beyondblue topic fortress of survival (also part 2)
beyondblue topic worry worry worry
beyondblue topic he helped me for 25 years Maharaji
That last one includes links to Maharaji and his YouTube videos, well worth listening to those, he has many on youtube so it can be part of your nightly relaxation routine.
Finally, you are not alone in possessing this sort of fear. Many people have them, it could be fear of other things like animals or a bad experience has left emotional scars like passing the location of a previous car accident. Our minds need repair or a chance to overcome the barriers that stop us being relaxed within our own skin with other people or trauma.
Well done in sharing your story and facing your challenges- you’ve completed the first step, many people never get that far.