I'm going to second Quilts, Quilts, Quilts by Nownes & McClun. And I'm going to second YouTube. I'm a life long sewer, but sometimes you just have to see it. Using the rulers correctly was a real life changing moment for me (quilting wise). I was trying to make a Vera-like bag and the directions made no sense - because they were written for a class and someone to show you - I found them on you tube - same with the super easy sausage pillowcases - just couldn't read the instructions and make any sense.
You are in for an important change in your life. I don't know what I'd do without my quilting.