7 months full-time study is doable, provided you CAN get away from the distractions of home life.
With the question banks taking a hammering with new questions, they are starting to become a redundant means of learning (or rather, rote learning of answers), and there is an increasing amount of negative feedback on the ability of the major question banks to keep up. With 2,500 old questions being taken out and about 4,000 new questions going in from January onwards, it's possible that exam results could take a nose dive - this has happened every time they have released a large batch of new questions into a subject.
I wish you all the best, whichever you decide.
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