I do myself interiors... so I think I am use to do it, though there is always something to learn, and I am far from accomplished in that domain. And some client would require some kind of feeling, some others and there is your personal taste...
Let say that you can use strobe, continuous, kino flo, daylight only, mixed of all, to support daylight or to fill some part of your frame.
You can use softbox from small to large... umbrellas... rarely direct except to ceiling...
That is just a huge domain to go through. Look at the place, figure out the focal point of the room... and play with your light...
For interiors none of them are the same...
the advice to start as an assistant is the best road to go...
keep us posted