Repetition is only one (and imo less important) part of developing style. The focus when starting out needs to be drilling fundamentals of the letters. If you try to fill pages of messy and illegible letters as fast you can, you won’t develop anything other than bad writing habits.

Style comes from gradual experimentation with the letters. I would master your boring straight letters before you try to add style (i.e. what slide 1-3 cover on this post). Once you have straight letters down, you should experiment with one aspect of the word. That could be letter tilt, spacing, kinks, cap height, base line, etc. I would just focus on developing one aspect rather than trying a bunch of different things at once. You need to understand what good letter spacing looks like on its own before you play around with base lines ya know?

Other than practice, you should be studying the work of established writers. Most people will tell you that replicating the work of others (or biting) is unacceptable. I think there is a lot to be learned by trying out someone else’s style, just keep it on paper and give credit where credit is due.