Simple explanation would be

Accrual = expenses not yet paid
provision = estimation for future expense
Prepayment = expense pain in advance

If you can work hard and good in English and maths - do cat and then acca . It is much faster and cheaper. Even if you fail a few times, you can still save yourself some cash. Ask your father to put the difference into buying Coke Cola or Public Bank shares.

When you graduate later it will be enough to probably buy you a new car.

If you want to take life easy and give the colleges the cash - use the route you recommended.