It's a part of practice and deals with patience when drawing any line. After all, this isn't a marathon or race to see how fast you can get something done or comprehending a lesson, if it was then it'd be pretty hectic lol. Also good luck with the box challenge btw.

Ok so for the critique,

Imposed Lines: You seem to fray at the beginning of each line, Id recommend that you try to start at the starting point of the line that was made by the ruler so that it doesn't fray too much. The lines feel confident, there are a few that do seem to wobble a bit, just go with the flow and try not to think too much about making your mark. Other than that it looks pretty good.

Ghosted lines: They wobble and curve a bit, and most of them are from the same angle. Try to practice different angles and rotate the page so that it won't look like we're looking at the same angle over and over again. They do look accurate, which is a good thing but you still want more confidence than accuracy.

Ghosted planes: They look great, however you want to keep it to only four dots rather than multiple dots at a time so that it doesn't get overwhelming and confusing when making the intersections.

Table of ellipsis: These look great, but you'd want to keep it to at least 2-3 loops per ellipse.

That's as much as I can crit. so far, lol, but your work looks pretty good