Start where you are
These guides are free to read and do not need an account. They focus on standard six-string guitar tuning and small exercises you can repeat. The chord diagram uses the usual string order, from low E on the left to high E on the right.
If you are completely new, follow the first-practice guide before moving to chord diagrams and E minor. If you already know a few shapes, go straight to clearer chords, steady strumming or a short routine.