you don't need to draw a whole circle for your mark just a dot is enough~

keep practicing ghosted lines trust me once u nail it to level 3 line quality everything u draw then will look nice to you

same goes to ghosted planes (confident > everything) and execute it fast

to ellipses goes the same you need that confident too and you really need to draw it fast so those lines don't look wobble

funnels you gonna need to apply from narrow to wider (like a coin or cd as it turns you will see more side of it)

boxes~ right after you draw a line just leave it there don't be like ahh tilted a bit i'm gonna draw 1 more over it to make it stable . nono thats not good just leave it there and try too draw bigger like the whole page so u understand whats going on there

the organic perspective look like all those boxes are same size (rmb farthest the smaller , closer the bigger

don't need to be pretty but i want you to at least understand the concepts of all of it , building confidence , be bold whatever you put down, how everything can be manipulated in space.