The great thing about golf is that there is a handicap system, allowing the weaker players to compete on a fairly level playing field against the stronger players.
So, if you get given a handicap and can play to it, you're in the game, so it doesn't really matter what your handicap is.
I've been playing for about 5 years and started with a 28 handicap gradually getting down to 18.
I think that you get to a level and that's you. I can't see me getting lower than this so accept it, one shot a hole, that'll do.
However, if your in the pub talking about golf, don't ever tell them your an 18. If you do, some twat will be giving you golf and swing lessons whilst your stood at the bar.
I find that if you tell them your handicap is 4, they soon fuck off.