Time for a new instructor, Cestlavie077.
A good one will answer your questions and explain these basic principles until you are comfortable with them. Best done in an aircraft over a few short nav legs rather than reading on a forum.
DR and an accurate flight plan is all you need. The map is an added bonus. Make sure they are teaching you the 1/60 check.
Congrats on gaining the PPL. Your hour building will be much more enjoyable when you are confident and can enjoy the view, rather than stressing over your position.
Good luck