like i said in my post try practicing learning. read a book for half hour a day, try sudoku play freecell on your computer. those kinds of thing will help you teach yourself how to learn again. learning guitar is a little bit harder but its still the same way. get a chord book and pick 3 and play them till you have them without thinking. when i was learning scales i would write them out in 3 or 4 note coils and the melody made them easier to remmeber.

just try everything and maybe something will work.