After reading all the "tutorial" and "Newbie" topics, I need to open my own

I have had this Ficus for 1 month now and when I received it, it did not have these long branches.
One month has passed and because of work I did not had time to look into it - I was only watering it. It grows, and now, after reading a lot I am still not too sure what to do.
Because it does not have much shape, I would like to shape it.
But, to do so, I think I need to defoliate it, correct?
Anyway, I am after some advise, because I really want to learn and take care of it.
Thank you