All good advice Scottie. Don't give up now!!
I can but add acouple of suggestions:
1. Buy an 'Airtour Plotter' Very quick way of sorting headings and distances from a fixed point.
2. Tell, don't ask, your instructor that you would like to do a Navex with HIM flying the plane. You just concentrate on the Nav.
3. The most useful thing I found on the map was putting on my 5 and 10 degree drift lines. 1 in 60 did my head in, but it's easier just to double the track error.
The last thing the rest of us want to see is someone giving up their PPL. If you do, you'll have at least half of Pprune to contend with!!
If u are in the south-east and want to run through prep and a pure Nav flight, e me as above.