Should I master 1 thing song/ chord/ exercise before moving on?
Or is it ok to move on before I can really nail something?
If you learn just 1 thing at a time it will take longer, you need song & exercises that will work on multiple things at once. However, if you're asking yourself this questions - there is a crucial thing missing for your guitar playing...
You have to measure your progress; daily, weekly, monthly, yearly,
Otherwise you are BLIND to the small improvements you are making, or unaware that you aren’t making enough progress and need to change things up!
5 easy ways of measuring your progress yourself that take no knowledge or expertise;
- Video yourself playing guitar
- Play along to records
- Time your changes between chords
- Perform! to friends, family, open mic nights
- Jam with friends - peer pressure works!
Short of time? Here's 2 massive principals of learning guitar that I work from;
If you are short of time, work on the technical aspects of playing
If you have more time, work on your ear training