Climbing is tough for everyone which is why it is a category of cycling performance. I'm an old guy and asthmatic besides so on hills I'm trying to be conscious of everything that may rob horsepower, such as it is. There are a ton of videos on you tube http://www.youtube.com/watch?v=zam74qlzGtQ with advice from pros on technique. Of special interest is high cadence, first and foremost. Second is, notice how smooth those guys are.