7 months is extremely doable in my experience. I completed mine in 7 months, and I took a few weeks off after mod 1 (2 modules when I did it). This was without going crazy with it, and I was also working part time as well. I put in a consistent amount of work each week without over doing it, and I put in A LOT of work during the brush up and lead up to the exams. Doing this I was able to pass everything first time with an average in the high 90s.