Hey there!

My main critique will be about taking a breather. You've sacrificed quality for speed. Make sure you tick your mental checklist whenever starting an exercise. Are you drawing with your shoulder? Are you taking time to ghost your lines? Are you making each line with intention?

Speed and tempo will come with time, these initial exercises help establish your muscle memory. The more you do it with intention now, the faster the confident line will appear.

Whenever you gear up to draw, start with like half a page of superimposed lines and then do some planes and ellipses. It's okay if those pages are messy, but do each line with intention. Do this every time for warmup until you're feeling more confident.

I'd like to see another page of ghosted lines, where you're taking your time with ghosting the lines. It's okay if you don't hit the dots, but I'd like to see straight lines that end somewhere close to where you place the dots.