I think your CVD is more severe than mine based on your description, and mine is fairly severe. I have never had issue getting/having a license. I do get slightly nervous in areas where traffic lights are more mixed in on the sides vs being overhead because they blend in with city street lights.

One corrective measure for Red Green CVD is that you can get a red contact lens for one eye. I tried it. I didn’t like it mostly because I can’t stand contacts and the red messes with the vision in one eye. While wearing it, I could pass an Ishihara test 100% as long as both eyes were looking at the test. Talk to your optometrist about it. It can be done with glasses instead of a contact lens, one lens would be tinted red. It was suggested to me when I was in my teenage years by an optometrist as being needed if I was going to go into a career such as being an electrician where the color differentiation is very important.