Not much experience, mostly just for fun.
I learned about studio lighting from friends that know more than I do. I would also watch youtube videos of shoots that show shoots and results, and pay attention to where the light is coming from. I like watching the ones from Annie Leibovitz. She's pretty incredible - knows so much about light and how to work it that often she only uses strobe.
I look at www.dripbook.com
for ideas, generally you can look at those photos, then try to re-create that image. Pay attention to where the light may be coming from, and if it's hard or diffused, you learn a lot from doing!
A couple tips -
light sources closer to a subject will be softer, further away will have harder edges.
you can use bedsheets held up by light stands or tacked into the ceiling as simple diffusers before you buy softboxes or umbrellas. You can also use sheets of cardboard painted a dull silver or a glossy white as reflectors.
for the sake of fashion, I've been told (and seen) a lot of people position lights above the subject to highlight cheekbones and create contrast under them, and then use reflectors to cut into the shadows under eyebrows and the chin. Seems like it would also knock out the shadow the light above is trying to create, so maybe there's something I don't quite get with that one, but it's worth trying, haha.