This is the first rogue I've made, I'm currently level 32 and I'm happy with how quickly I can disperse of enemies 1v1. However I did notice that if I can't down an enemy after my first ambush, I've ran out of energy, and my ability to attack slows down dramatically. So I find myself Gouging them to give myself 4 seconds of time to replenish some. But I feel It's a waste though, because during that time it's like I'm just standing there, LETTING them attack me because I don't have enough energy to burst back. Perhaps I'm doing it all wrong. It's fine for now, since I'm still questing, but I know it will be a problem during pvp.

Is there anyone else familiar with subtlety rogues, who can better explain to me some sort of strategy?