You've shown yourself to be a competent warrior, $N. But you're still young and have a lot to learn.$B$BSpeak with Harry Burlguard--he's usually in the Pig and Whistle tavern, in the Old Town of Stormwind. Harry is an old veteran and a good teacher. He can show you a few moves that'll keep you breathing longer.
Speak with Harry Burlguard in Stormwind.