Well, the good news is that because you're relatively light, you're not that short for your weightclass, for the time at least. Because I weigh so much (when I played soccer [i.e. Ran miles and miles and then more miles every day], I weighed about 180, and that was the skinniest I'd ever been in my life....when I played football [much more muscular with more bulk] I weighed about 205, so I'd probably wind up being around 190-195 in peak fighting condition), I'm gonna wind up fighting people a LOT taller than me, so bobbing and weaving is a much better option for me. You'll learn more once you start sparring/competing, but I cant imagine you fighting people that much taller than you, especially in amateur matches.

If you DO wind up fighting taller opponents, I have a feeling you're gonna stop liking to outfight so much, as chances are its really not gonna work for you :P