Preparing for Proficiency Exam

I'm preparing for the Profience Exam. I have an English teacher, who teaches me once a week, but I'm trying to work along on it on my own during the rest of the week. Do you have some/any great/good advices for me?

Thank you for your help!

Advice is an uncountable noun, so there is no singular or plural forms of it. Still, if you want to use the plural form, you can say "pieces of advice."