>>725005967
this may have been an issue 20 years ago. but now there are tools that help with that. in clip studio paint there is a slider that let's you adjust stabilisation. it means your lines will appear much smoother, ignoring jittery inputs.
art is much easier to excel at today with all the tools that are available. you don't necessarily even need to learn construction with primitives, and can instead just pose a 3D model and trace over it.
it's important not to overly rely on such tools though, constructing with primitives will allow you to eventually draw anything without needing a visual reference, much like kim jung gi.
many people don't fail at art because it's difficult, they fail because they don't commit to it.