Still has lots of potential to grow. Typically I use cacti mix but you can still use your potting soil just make your media grittier, and find a smaller container, it would be nicer if it is wider rather than deeper. Roots of jade plants are quite small and shallow as you have already seen.
Put some top dressing if you can like chicken grit (insoluble crushed granite), pumice or aquarium gravel, that should further help stabilize the base and help it from staying too wet in case you water. You can just adjust container size much later as it grows taller and wider branches.
If your weather is now okay outside, try to give it some more light, it loves a lot of light.
The seasons and temps are changing, so expect also that your baby jade may start dropping its older lower leaves and will just keep the newer ones closer above.
Here is my smaller Crassula ovata to give you an idea:
When initially planted in Oct 2016:
Closer look of media top dressing:
Photo today 14Jun2017