GREAT start!
Looks happy and healthy.
Note of warning.. This will be a VERY long road. Think decades, not months..
Step one:
Keep it happy and healthy.
Step two: Decide what you want your tree to look like in 20 years
Step three: start reading. Lots. A lot has been written down.
You need to create a good radial root system. "
how to
You will need to create a good trunk.
how to
By the time you are done, say, in a decade or so.. I am sure you will know how to create a good canopy.
I would advice to also get a somewhat more mature plant, while you wait for this one to put on some weight.