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I was so bad at 'Art', my school totally missed my modest talent for technical drawing...

You can get inexpensive squared paper to keep blocky plane diagrams aligned, and 'isometric' paper with diagonal ruling for a neat 2½ dimensional look. Though not 'true perspective', the latter is a practicable and quick compromise. Given restricted 'depth of field', few would notice, fewer complain...

If you hunt around on the wwweb, many free templates are available. Also, bespoke protractor-ruled, which I've used for visualising complex barrel vaulting...

There's a lot to be said for a budget set of geometric stencils, so your plane circles appear round, and 'perspective' circles acceptably elliptical...

There are many introductory works on Technical Drawing and visualisation, even some at 'hobbyist' level like the classic, ~$10

Workshop Drawing (Workshop Practice) Paperback – 6 Feb 2003 by Tubal Cain (Author)

YMMV...