In my years of teaching high school I had several hearing-impaired students, all were successful but did face some problems. As for driving the law at one time required the use of outside rearview mirrors on both sides of the car, something standard on all cars now but didn't use to be common.

I had one young lady with 0% hearing that was a cheerleader, went on with a cheer scholarship to a D1 college. She was full of spirit, huge smile, great athlete, and watched for quick signals from the captain to know what cheer they were doing. If any of you watched her you would have never known. I also have a young man that is currently a commercial airline pilot for a major freight carrier, but I think he is prevented by the FAA from flying commercial passenger airlines.

Back to the OP, I think it's great you are willing to take the leap of faith to do this, hearing-impaired or not. My suggestions would be to obviously have good mirrors to see what is coming behind you, let people you met know of your problems up front, and have a great time.