it might not be great now, but drawing those fast lines is what you eventually want to be
doing. From watching a lot of cats better than me I realized that the best way to put down a
line is to locate the start and finish points with your eyes, and then connect the imaginary
dots in one swift motion. The more you use spray paint the more u will realize this is how
to paint as well. Think about it, if you draw a line too slowly with the can, you'll get drips!
To combat those shaky hands, I would say aim your medium where u want the line to start,
keeping the pinky-side edge of your hand pressed against the page, then lift up your hand at the exact moment you whip out that line.
regardless of whether these specific tips were helpful or not, just remember that everyone
adds their own flavor to their art, oftentimes because of their own particular challenges with the art-making process.