Welcome to the nuthouse!
That is actually not a jade.
It's called Portulacaria Afra, or Elephant Bush, or Spekboom.
Sometimes sold as Baby Jade or Mini Jade.
Jade is called Crassula, and it is a different plant.
Best advice on your Spekboom, they like to dry out between waterings...
The roots won't grow if they're always wet or damp.
When the soil completely dries out, the roots grow, searching for water.
I use my leaves as indicators as to when to water.
The leaves are plump, smooth and shiny when they are full of water.
When the plant is ready for water, the leaves look more flat, dull and you can actually see tiny lines begin to appear, as the leaves begin to shrivel.
When I water I flood the pot several times, and I use water soluble fertilizer frequently.
Be careful though, if they get too dry, you'll lose your leaves....but it will grow back...as long as you don't totally neglect it.