Congratulations on finishing this hell! Your convergences generally look pretty great! If you haven't checked out Scyllastew's video on how to draw a box, I'd suggest watching that video as well, it may give you some new insights to further improve your convergences. tldw; it basically boils down to plotting every point/dot (corner) of the box after drawing the initial Y, and you can put down multiple dots if you see that your initial dot would result in an inaccurate convergence (when ghosting). I see you sometimes overshoot your lines. For now it's perfectly fine, but one piece of advise I can give you (besides that you should read one piece), is to execute your mark a little more slowly, and keep your eye fixed on the dot you want to reach. You can try this out in a warmup so there's no pressure of needing to achieve perfect results. This method has not only helped me get straighter lines, it also resulted in me not overshooting as often.

I also noticed that you tend to draw over your already executed marks at many times. The whole idea of using a pen instead of pencil is to commit to your marks, and once you f up, you need to act as if the mark is correct. It'll force you to ghost more, but also to face your failures much more. I know it's difficult and frustrating, but every time you notice wanting to correct your mistake, put your pen down and take a break!

I think your submission all in all is really solid, your lines are basically always straight as an arrow, super dope!