GCSE maths tutor teaching key stage 3 and 4 students

i have a lot of experience teaching people mathematics at GCSE level who I've helped to overachieve their target grades. I love to help people to learn concepts that they think is impossible to learn but with my help and guidance they'll learn and understand these concepts very easily without feeling like it is forced upon them. with the way i structure my lessons my student would surely learn all the concepts while having fun and I'd give them tasks every week that would assure they remember the concepts I teach by giving them exam style questions which will challenge their mind but will be a task that they can do without getting bored because it is too difficult. When they've done the task i will go through it with them and tell them whether they've lost marks and prepare them so that they lose the least amount of marks in the exam so they can get the best grade possible