Learning octaves is a good way. Print out some fretboard diagrams and write it out, over and over. Pick one note (say G) and find all the g,s all over the neck. There is software for tablets PC that can help also. You will find the more you play the easier it will become.
I would be working module two also. If you are worried in not progressing because of the right hand, you can allways just stick to chromatic form, spiders, and trills, so you can give the right hand a rest.
but i would also add some chromatic's and ladders in there two, you have a metronome so if your worried about ruining form then start super slow, like one note every four beats at 60 bpm, that way you can keep an eye on your form.
It will seem super slow but your training your fingers the correct way, and things will soon speed up once you move to 80 then 100 bpm. then move to one note every two beats at 60bpm etc. until your hitting four notes per beat and 100 bpm your starting to fly then.
And you can allways add in the full five position system to learn also.
All positions are movable so if you know it in G you know the physical part. Now its about mapping it out in all keys for the theory As for what keys to learn next a lot of people would just go around the circle of fiths, as this changes just one note.