Some very good questions there that I think I can answer.
Remedies to anxiety come in short, medium and long range implementation so if you are doing say, relaxation that might not seem to work but in the long term they will. So be patient and form a routine daily for all standard ideas to reduce anxiety.
33 years ago I had a workplace trauma that began panic attacks. It was law enforcement (not police) and eventually after a year off work I had to leave my profession. Fir the first time I learned that with anxiety (and other illnesses like depression) that the profession and the workplace can be two of the triggers to anxiety. It isnt easy giving up my career and seeking another.
So professions that are not ideal for anxiety could include- customer service, food preparation and selling, law enforcement, medical, aged care etc. Also two part time jobs are better than one full time, a change of scenery after 3-4 hours is gold.
Eventually I started my own business in private investigations. That enabled me to work alone and reject work if it was too taxing like far travel. I also was more anxious if staying away from home. I earned to be more aware of people approaching me on the job so proved a master at avoidance.
Here is a few threads I've written that tackle these topic in more depth. Google them and read the first post of each. You wont regret it.
Beyondblue topic anxiety, how I eliminated it
Beyondblue topic the balance of your life
Beyondblue topic know your limits
Beyondblue topic MELTDOWN- back to basics
Beyondblue topic what life's like at the end of the tunnel
Beyondblue topic supermarket shelves
Beyondblue topic Anxiety?... plan your future
Beyondblue topic seeking the origins of anxiety
Beyondblue topic meditation-words of wisdom- he helped me for 25 years- Maharaji
Beyondblue topic the frog and the scorpion
The last one on the frog is an example of the fine line we find ourselves in. The balance of accepting who you are (that includes some anxiety) and the changes you have to make to improve your life. It means not seeking so much change as to find other issues arising like losing your way through losing your own personality etc.
As Stephen Fry once said "if I am reincarnated...I want my depression to come back with me also as I know no other way to live life without it".