learn to oil paint

I’ve been wanting to learn how to seriously paint for a long time. A few weeks ago my fiance took me out to buy a huge supply of canvases, oil paints, brushes, etc. Last week we bought a desk/chair and tabletop easel just for me to use for painting. Now, how to do it well? I’m still amazed at the support for my interest, no one has ever done anything like it for me. I don’t have to work, either. There is no excuse not to give it my all.