couple of points within lessons using the L shape to move to same note on a different string. There are How to memorise the fretboard tutorials on GT facebook page. Might be in here somewhere.

there is a fretboard diagram in the tool box.

We should know the nut and the 12th.

We can go up strings in WWH etc

you pick up spots. 8th fret 6th is C

spots on 4th string are FGA

alongside on 5th is CDE

start with the natural notes up to 6th fret as a starter.

It starts to come together.

Then when we think we are slow the fret trainer lets us know we are improving even if it is snails pace.