1 week until my first gsce maths exam

No. Revise

would that be the best way to revise atm?

Do past papers then work on the topics you struggled with.
Which board?

hey! i need help i am trying to complete past papers before my first exam and i'm thinking of doing the same before my 2nd & 3rd exam this month and next month
will this be enough to go from a grade 2 to 4?

I am predicted a 9 so I hope this can help. Do some past papers to highlight your weak points. Then from this, make flashcards on key concepts like algebra, probability etc. and keep doing these every day until your exam.
Try to focus on topics that are guaranteed to come up (e.g. cumulative frequency graphs) because there are about 4-6 marks worth on each paper that you can pick up. Keep doing past papers until your exam and after attempting a question, if you still don't get the answer, there are loads of walkthrough videos on youtube which explain the answers in a lot of detail and will make way more sense than mark schemes.
Make sure you mark your past papers accurately using the mark scheme, and for certain questions they may ask you to justify your answer or explain why someone is wrong, so learn the exact wording that the mark scheme wants; usually they want you to use certain words like outliers or the value is out of data range. To be honest though, these questions are only worth about 1 mark each so I wouldn't worry too much, but it it just useful to learn how to pick up marks wherever you can.
I hope this has helped and good luck!

yes as i got a lot of questions wrong so i can revise the topics that i am struggling with
Edexcel

Please ignore reply 5 as that relates to Higher.
Use this to practise weak topics: https://www.drfrost.org/explorer.php?coid=12808
I've posted this before - a free predicted paper: https://www.1stclassmaths.com/exam-papers

hey! i need help i am trying to complete past papers before my first exam and i'm thinking of doing the same before my 2nd & 3rd exam this month and next month
will this be enough to go from a grade 2 to 4?

do several past papers and try to understand the concept behind each question, make sure to go through the mark scheme thoroughly