Sewing machine practice

[Tommy217xxx]

So I got a sewing machine a few weeks ago and have been messing around with just learning the basics of my machine and in that time, Ive realized that i suck a sewing around corners. So I’ve been coming up with practice exercises. 
 

Basically following the lines with my machine. I traced some quarters to practice circles. Obviously I’m terrible at sewing and have a ton of practice ahead of me but does anyone have any tricks or exercises that they use to practice sewing?

[AlZilla]

You're doing one of the exact things recommended for new sewists. People starting out with domestics are recommended to sew on paper until they get the hang of it.

I would switch to cardboard instead of using up your leather and just keep sewing patterns without thread. Build muscle memory.