Digital Coloring w/ Krita Question

[DorkArtsComics]

Hello fellow Creators. I have a question about how to best use Krita to color some comic pages I have. Currently I have Krita 4.0 and a 12in Wacom bamboo tablet. A lot of the tutorials I see for Krita seem to have the line art created in Krita and then colored over that. Has anyone had experience coloring a drawing the did and then scanned into the computer to open in Krita/photoshop to do the coloring? I ask because A) it seems very overwhelming but I think I am approaching it the wrong way and B) I am trying to figure out how to set it up for the smoothest, most efficient use of the tools I will need most. Thanks in advance.

Mike