How do you study computer Science?

there's not a massive amount more you need to do since gcse computer science doesn't have that much content, the only other thing you can really do is improve your coding skills so you're comfortable if any coding related questions come up - there are plenty of coding challenges for this. particularly practise coding using structures like 2d arrays, records, etc. if you have any books like cgp revision guides or pgonline you could use the questions in these, otherwise that's basically it and to be honest that's all you need

Where do you get your coding questions from pleasee cos I really need to practice