My advice for study is a little and often. I would study on the commute from work and to work and for half our in my lunch break (so about 2 hrs a day before I got home). In the evenings would study about two Hrs. Wouldn't study Friday evenings or Sunday. Study on Saturday for about four to five hours. Studied subjects I was interested in for example in module 2 p of f, performance and stuff that was boring to me such as Operations and air law left to the end. Hope this helps!