Maybe just try leaf tucking at this stage, since she's not super bushy. I usually only prune the lower leaves and small popcorn bud sites that are closer to the soil. I just think of tiding up all the lower leaves and small minor braches, to allow for air flow and light penetration. I don't remove any of the higher fan leaves. But that's just me, I don't have the experience that other members on this site have. They may tell you different. I am always a little overly cautious when it comes to pruning. I'm sure that changes with more experience.