Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

Do you see a psychiatrist? Mine has told me that a benzo lasts about 4 hours after taking it. And they are very addicting.
There is another kind of anti anxiety medication called SSRI's. They can be taken once a day, every day, and they last longer in your system.
Also, therapy is very helpful for anxiety.
My own anxiety has proven strong enough to break through the strongest of med therapies. It took a blending of drugs and psychotherapy to tame that savage beast inside my own skin. In my own case, as my skill with the psychotherapy tools developed, we were able to wean off the drug therapy and I now manage my anxiety holistically. It took a team effort, pro and peer, to accomplish that transition. It was not a casual transition.
But that is me and every case is unique.
Gentle support while you find what works for you. Welcome aboard.
You've taken the important first step in writing it out.
Keep writing. Also find ways to distract your thinking with 'doing' tasks.
Best wishes as you find your better balance.