Dont do distance learning unless you seriously have the time to spare and the dedication to study every day. Although it may be cheaper, I wish I would have done full time and quit work earlier, as 'trying' to learn Met and Gen Nav from a book on your own is hard going ... But as you have already sat phase one, I guess that is irrelevent.
For flight planning, I highlighted the areas of charts I had seen in feedback Q's, which actually helped me save time in the exams. For Gen Nav, I found that using a globe really helped me understand aspects of convergency and divergence. Air Law, RNAV and Ops, use the Q bank and best of luck ...