Sound Technical advice for wiring a room that already has a sconce light for a ceiling fixture?

OK, here is what I’m dealing with:

I have this room that I will be using primarily as my in-home Art-Studio. The Sconce light on the wall isn’t very good for lighting and I want to keep the room relatively un-cluttered.

I’d like to install the new ceiling fixture using the same wire path up the wall from the light switch and into the ceiling using new wire. The center of the ceiling has already been found and it appears to be right near a joist for secure mounting of the base.

My problem is getting the wiring successfully fed through the ceiling and part-way down the wall to the switch- without making a lot of holes.

Having never used a “wire-fish” before – I’d like to know how to make this DIY-project go smoothly.
(If I have to make extra holes- I’m already re-finishing the ceiling and adding crown-molding later.)