Wishbone,
I agree with George H. I'm not sure you should be driving at all. I feel alright saying this because I also do not drive due to medications and how it effects my ability to make good, fast and correct decisions. I don't want to be the cause of a slow to react choice or cause others to be unable to make the right choices.
Think carefully about driving whenever you get behind the wheel and try to learn , hopefully your reactions and confidence will improve.
Good Luck to you,
Sami