Really, just start anything. References are a big help, so have those on hand. A style is something you develop, so you won’t have the full picture of what yours is from the beginning. But, I’d say you should take inspiration from the things you enjoy. That’s a big part of how I developed my style

Good luck, soldier

I recommend remaking something that already exists and was made multiple times, so you could pick and choose what you like about them and see certain tips and tricks on how to create Stickfigures. Then when you go to make another Stickfigure, see what you liked about the last Stickfigure you made and keep it, and try something new with the stuff you didn’t like. That’s what i’m doing, at least