You appear to have full blown PCS. Try to click ion my name and see if you can PM or email me. The TBI Survival Guide is very helpful.
Avoid busy grocery stores. Go shopping at odd hours when there are few people. Some stores are better than others. Some have too much signage and clutter. Taller ceilings may help. Try to minimize your visual field.
This is a bear of a problem. I still struggle with it after ten years.
Regarding the TBI GUide. You can read it online and cut and paste the web version into Word so you can print it. You can also print it directly from the web. It is at
www.tbiguide.com
Click on the various links under List of Contents.
My best to you.