Step by step.
1. Rotary cutter and ruler.
2. Fabric you like... try a crib quilt size first!
3. A pattern (try one without triangles for your first)
4. Cut and sew the top.
5. Did you like what you produced?
Until you have the top done don't worry about the layering and quilting.
If you didn't like the process have a yard sale and sell it all... but if you liked it as much as the rest of us do, you can come back for more advice later. We're open 24-7!