You have come to the right place for help and people to share your experience with...
It sounds like you may have GAD, Anxiety, agoraphobia, and perhaps some type of Panic Disorder, I myself, have been where you are now.
This is a terrible feeling that is not easily explained or understood by people who have never had it themselves.
I lost close to 15 years of my life, back in the early 1980's - luckily today, we have many wonderful resources and help to get you back to normal and avoid losing any more years!
We have many great people here at the forum the understand what you are going through, and are very supportive.
This site has many helpful resources , and of course many wonderful people here.
Welcome, we are glad to have you
Make sure to Ask a lot of questions !!