I have been boxing for about 4 months now and spared for the first time today. I did rather well but had some problems b/c my opponent was a bit bigger then me. I am 6'5 and 216lbs and he was about 6'7 and 256 with a much longer reach. I did well when I was able to get inside but had trouble getting there. I tried to walk in with my jab but most of the time I just couldn't reach and when I came in he was able to hit me before I got in close enough to connect. A guy at my gym sugusted I start jabing him in the arms and come in that way. Any other advice?