Having problems with Shaco

I've recently picked up Shaco as a jungler, and I'm absolutely loving him. One problem I always have though is a general lack of experience gain in the early game. I know all about Shaco's great early pressure, so I try to gank as often as possible. The issue is, if I make ganks that much of a priority, I never get to farm, and I end up falling way behind in levels. Sometimes the ganks don't work out, so I've basically wasted my time, and I'm even further behind. My question is, how do you balance the need to gank with the need to farm in the jungle? With a jungler like Shaco, getting the lanes ahead early is essential, but if things go sour, you put yourself back hugely. Whenever a gank DOES work out, I take a few lane cs as compensation, but down in my elo (Silver 2, not proud of it, but I daresay not bad for my first venture into ranked) getting laners competent enough to work a gank properly is almost impossible. Any tips from the more experienced junglers around?

And one more thing: "use a different jungler, Shaco sucks in low elo" is not acceptable advice, and I'll just ignore you.