Hey!
So basically when I do an exam I will always do the questions I know best first and leave the hard ones for later in the exam, it ensures you get all the marks you know you can. I will usually circle the questions I am confused about or just not 100% with. Once i've attempted everything in the paper i'll go back to the questions i've circled and see if i'm confident that the answer i've given is the best I can do with what I remember.
I get what you mean when you kinda aren't bothered to continuously go through your exam because you have finished... except you haven't you still have heaps of time to make sure you can get all the marks you deserve. Once i've checked the questions i'm hesitant about I will turn to the beginning of the paper and I will do every question again. With multiple choice I do them all again and check that all the answers align (I have lost so many marks to simply shading the wrong bubble even when I knew the right answer
) and that I haven't made an stupid mistakes. When I look through short answer again I look at the mark allocation as well as the question and i'll mentally create a checklist of what that answer needs to have, then i'll read my answer and make sure all those boxes are ticked. With essays I make sure I am ALWAYS answering the question, band 6 criteria requires a "sustained, logical and cohesive" response, so you need to constantly answer the question. I'll also check for spelling and grammar errors and make sure I have dumped everything I know about the topic onto that piece of paper.
Just a tip, its better to write more than less, if you look at your response and see places to add information just do it. After all, wouldn't you prefer to include the information and make it a 6/5 response rather than leaving it out and getting a 4/5.
I hope this helps!