Hey there!
Year 13 student here, its amazing to hear you're interested in achieving top-band grades and planning to take A-Levels.
I just have some questions to build some more context:
1.
What does your revision look like? (i.e how long do you study per week, do you have a schedule/planner, how do you revise)
2.
How long until your real GCSE exams?
3.
Can you tell me a bit more about your difficulty concentrating (if you're okay with that)
Aside from the questions, I can give you some general advice regarding studying and revision:
a.)
Make your revision goals realistic, align how long your revision sessions will be with your concentration, e.g don't jump up to a 2 hour session if you'll spend only 40 minutes actually being productive, start small and build from there.
b.)
Always use past exam paper questions in your revision, they are arguably the best method of revising since it prepares you to recall your knowledge and apply that knowledge to questions that mimic the real exam.
c.)
Communicate with your teachers, teachers should always be there to help you, make sure they are aware that you're aspiring to achieve top-band grades so that they can work with you to get you there, they can offer one-to-one support on topics you may need improvement on and give you extra resources (like exam questions) for you to utilise.
d.)
And on concentration, avoid using your phone or any other distracting objects, phones especially were so detrimental for my study since they were so good at distracting me, the best thing to do is put your phone in another room and surround yourself with a quiet environment with your revision tools (books, questions, etc) out.
e.)
Consistency, consistency, consistency, having your revision spread out over the month is known as spaced repetition, its been shown by research to be one of the (and even the most) effective ways to study, in other words
do not cram your revision until the last moment, although I do understand that might be a challenge to do?
Hope to hear back from you soon, wishing you the best in your studies!