I have started using some different techniques to climb. First, I am purposely relaxing more as I approach the hill..ie: letting the hill come to me. I'm breathing deeply and since I'm not strong enough to spin up the hill, I get myself into a slow, steady cadence that I know I can sustain up the hill.

Most importantly, I've been putting my hands on the top bar and really relaxing my hands, elbows and shoulders... the great benefit of this is that my heart rate stays down! If you can control your heart rate and your breathing, I believe you can climb just about anything. I am still very slow going up, but I'm comfortable and in control.