6:39 AM, Sunday December 20th 2020
heyo! welcome to drawabox dude!
I'd totally recommend warming up your arms first by doing some stretches so that you can feel more relaxed and comfortable before you start, then you should totally find your comfort zone when drawing by practicing various angles in different positions and see which one is best for you. Then you should practice making strokes at a good pace, not too fast but not too slow. as you dont want to wobble. Feel free to watch scyllastew, (probably spelled it wrong), and see how you can apply her techniques to your own.
Also, dont worry about overshooting your mark, it's totally ok dude. Just remember to pace yourself, warm up and stretch beforee starting and you'll totally do good dude. Hope you find this helpful and have a nice day dude!