Advise on approach volume, should, really, long

stronger

So, I am a Finance major with a minor in Econ. A year and a half ago for the sake of keeping up in a quant shape did well in Applied Calc I. Just out of over a year long FP&A gig on the P&L side. The CFAI materials are here. Where should I start ? Should I cover one volume at a time or two at time for the sake of hitting the qbanks hard by early april? Also, how much of the Level I is weighted toward Econ? The Econ textbook is really talking to me, my favorite subject .... Thanks.