At some time you will have to learn how to self-study. It is unavoidable, even if you manage to get through the ATPL course (which will cost you considerably more than the going rate if you have to have one-to-one tuition throughout), you will have to be capable of self study when (or if) you get a job. Matt101 has accurately described the difficulty but another way might be to envisage a mountain of rice which you have to eat. Unfortunately, you are only given a very small teaspoon - it's the quantity and not the level that makes these examinations difficult. And if you do take the modular route, you'll become the pain in the course if a) slow everybody else up and/or b) take all the spare time the instructor has.