ccea gcse chemistryWatch this thread
my number 1 advice (favourite route )would be binge watching freesciencelessons' vids,and as u go through each vid, just do quizzes and blurt what you remember (write down everything u can recall from the vid, and just go through the vid again to add any missing information). I can't guarantee this method would work with you though, as what works for me may not work for everyone!
i don't have any solid advice but try and look at some past papers and see how the questions are answered, like on questions about describing the structures of ionic and metallic structures. Good luck man