I use selsun blue anti-dandruff shampoo with 1% selenium sulfide. I got some in my eyes, washed it out as best I could. Still burns? Will I go blind?

Won't blind you. It'll heal itself. You're almost a grown man and need to get fears that you must surely recognize as unrealistic under control. You list "anxiety" as a problem -- this would be a great time talk with a therapist or counselor about why you have such fears as this and what you can do to be happier as life goes on.