I hope to be useful
Answered with a tutorial: https://grabcad.com/tutorials/anybody-have-2d-drawing-for-practice
I hope to be useful.
Try these may be useful
the best way to pratice is to invent a real project
May I suggest you purchase "Technical Drawing" by F E Giesecke
ISBN-0-02-946375-0 Hundreds of 2D drawings and lots of how to draught correctly tips. I found it very useful.