My jade looks much the same. And I live in the S. California high desert, and its in a west window! So it gets several hours of sun a day, yet it still looks "weedy." I don't like that look, but didn't know what to do about it. Now I know I can cut off a top stem. It just seems that every time I do that (like I did with my Crown of Thorns), it takes FOREVER for it to get new growth. I'm like SugiGirl, I only water about once a month in winter and maybe once every two weeks in summer. Here's my jade, so you are not alone!