TPR
because of circumstances, I had to take all the exams in one go, but I would think it would be soooo much easier if you can do them one at a time over 6 months. You can concentrate on each subject in turn.
I found the Confuser absolutely essential as a "test-my- knowledge" book - but not to learn from - use Thom for that! There are a few questions and answers in the Confuser that are incorrect - so don't be totally reliant on it - be critical and check against Thom.
I went through the Confuser questions time and time again, until I could get every answer correct - I probably knew all the questions by heart at that stage. It got me through with only one error on every exam.
Fortunately I didn't have the interruptions, but I did spend about 1 to 2 hours a night every weekday for 3 months, reading, self-learning and self-testing.
good luck
GB