I have had my licsence since I was 17, or 8 years (tho I lost it breifly for a year). I must say I did ok, I cant drive very well when their is a ton going on around me (namly city driving) so I avoid that. Also, I cant have many people in my car as they are a distraction, weather it be their fault or not. It does take practice, just stay dilligent and avoid areas where you may be distracted. Some of us have a harder time dealing with distraction then others. Just drive as safely as you can, even if you are a few miles under the speed limit dont even worry about other cars and what they may think. As for the police... well, I think everybody gets a bit nervous around them, but if you have not done anything wrong then why worry? If they pull you over just cooperate and personally police dont bother me I always drive the speed limit and try to maintain safety on the road.
I drive almost an hour to work and back every day, and on weekends im usually out and about, so I put about 400+ miles on my car every week, I have plenty of practice. Good luck, be safe!
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DX'ed with HFA as a child. However this was in 1987 and I am certain had I been DX'ed a few years later I would have been DX'ed with AS instead.