Therapy should be for "big" things not every day stuff that you should be able to handle on your own.
A loss of a child, you might benefit from therapy. Someone cancels dinner, just calm down and get a life.
And years of therapy means that you are being scammed. The therapist should have taught you how to use certain emotional tools to deal with things not spend an hour a week listening to you yap.
Allow me to pass on some wisdom to the lady in the first part of the article. Build a bridge and get over it.
Throughout my life I would get a period of a week or so where I had uncomfortable anxiety. Sometimes a specific situation, sometimes not. I have a list of things to do to get me through it and they work. Three years ago I had a bout running into a month. Nothing specific. None of my methods worked. Talked to my MD and she put me on some low dose meds. Talked with a therapist for 6 months and we stopped because I was through it. MD cut my already low dose in half and, after big trip in early June I intend to stop them.