need help in final accounts preparation

Hiii all

I am CA final student having my attempt in Nov'11. I want to study accountancy myself and i am also good at subject. My problem is regarding topics other than AS.

I have bought MPV, and started reading from it, understood all concepts very clearly but we all know in CA-final, everytime we get different type of question with slight change in concept.

At first i see question, try to figure out solution and solve in copy, succeed partially everytime but never completely. If again same kind of question appears then till long i remember the past one, i could solve little more than previous one. I plan to go this way & after finishing one time, revise question again quickly by overview, and then pick up unsolved scanner and solve it out.

My question is that this approach is alright or complete wastage of time.