Similar to me, I only just qualified for my full license last week, I am 37. I think it is harder to learn when you are older, I sometimes think I am just not willing to take the risks I would have done when I was 17, and like anything, learning when you are older is more difficult- look at people who take up musical instruments in adulthood compared with those who started when they were kids.
For the first few years I was a nervous wreck, now I enjoy driving especially long distances. I am more cautious however, I would never overtake on a single lane highway, I wait for the overtaking lanes etc. I also never try and get into tight spaces unless absolutely necessary - I prefer to go further away and walk than try and squeeze into tight spaces with lots of cars around.