Can I make my jade grow any faster?

My jade plant, purchased more than a month back, is almost exactly the same.

I keep it near a west facing window where it gets direct sunlight for a couple of hours a day and indirect sunlight almost throughout the rest of the day. I also water it once a week.

Anything else that I can do to expedite its growth?

Some background: I have been woefully unsuccessful at growing jades. I've killed at least 2 of them before this.