Oh, man. There is SO much to baking bread, I don’t even know where to start.
And the really ironic thing is I just started a loaf right before reading your post 
I tried my hand at a true sourdough starter…but it’s really difficult, and I guess I just didn’t have the patience. I’ve heard it’s good to get a bit from a favorite local bakery you enjoy.
But I do want artisan bread, so I compromise. I take 1 cup water, 1 cup flour (high gluten), and a package of yeast. Mix all ingredients in a bowl (NOT a metal bowl), except just add about 1/4 t. of the yeast. Save the rest for later.
After it’s all mixed in the bowl, I cover it tightly with plastic wrap and stick it under the comforter and topsheet of…my waterbed. I live in Oregon, and tonight it’s pretty cold so I’m even doing it right now. This really gets things going. There is natural yeast and enzymes in flour, and sitting over night really makes my bread what it is.
The next morning I’ll wake it up by following Betty Crocker’s French bread recipe. Whatever the recipe calls for, I just start with my original 1 c flour and 1 c water; and I add the rest of the yest.
For rising, it’ll be a bit chilly here tomorrow morning. In the winter I keep the 'stat at 72, so I just place the rising dough near a heat register and covered with some wax paper and a damp towel. Obviously I won’t have the heat on tomorrow, but it will warm up pretty quickly. If you want, you can run your oven at the lowest setting for a bit, turn it off, and let the dough rise there. My initial rise is about four hours; the last rise is anywhere from 2 to 4 hours. Bread is a 24 hour process for me, and that’s what makes it taste so good.
I’m sure you’ll get plenty of tips in this thread. It’s a VERY difficult hobby, and I’d recommend taking a class if you haven’t already.
Good luck!