The videos on acowtancy are brilliant. Depending on your preferred learning style is whether you find this way effective for you.
I love the short videos and the constant re-emphasis on how a formula is used.
The explanation and breaking down of a subject I used to feel was daunting has been amazing. I will always use acowtancy as my goto study place. I know they say the proof is if you pass the exam, but I also believe it is how confident you feel going into the exam. Its like the 'penny has dropped' on this subject.