When the number of people who think you're "Number 1" and they gesture to show it, drastically increases then it's time to get the opinion of a 3rd party as to your ability and reflexes.
Maybe you think you're doing fine, but I've noticed that older drivers tend to drive slower as they age which can really tick off the people around you. You may think you're doing just fine, but when you're impeding traffic you can be considered dangerous. Maybe those other people are driving too fast, but maybe you're driving too slow.
If you're wondering how you're driving is, have it checked out. Sure can't do any harm, and if more people would do this, and put down that blankety-blank cell phone, magazine, book, make-up mirror, or whatever they're messing with, the roads might be a bit safer for everyone.
Howard and Peggy
"Don't Panic"