Isn't this fun?   It was hugely rewarding to build it for you

Keep in mind that what you know means little to any of us, including the face in your mirror.
What you DO with what you know fascinates us. 

Do more with what you know.
Rapid improvement is the inevitable result.
Even better, such improvement occurs as often as you wish.
You already know the math: try it ten times, and succeed once or twice..
Try it one hundred times, and your skill level multiplies repeatedly.