its an easy exam to be honest if you keep practicing it everyday. it will definately gonna boost your writing speed and help you to understand the pattern of the questions. There is only rule in F6 that is REMEMBER EVERY RULE and you'll be just fine :)
This is my favorite and highest scoring paper as there is more calculation. You can achieve high marks on calculation after much practice, which is not necessarily the case for discussion questions.
for passing this paper need a lot of practise