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David managed to make me go from being an A2 student with an extremely weak base in chemistry scoring D grades by luck, to a student that now my whole college comes to to ask for help in chemistry, I had to fit in doing all my A2 subjects (all sciences) and redo my whole a level chemistry. In all my ISAs I scored above 96%, in my mocks I went from Ds to an avarage of 94.6%, which dependant on your year, is an A or an A*. David didn't only save my A level, he made my most disliked subject become one of my favourite. David also is extremely knowldgable and understanding, he managed to also help me and enrich my Biology for my A level just in time for my exams, I attend one of the chaotic, if not the most chaotic colleges in London, yet thanks to David, I'm now able to progress and go to uni. Been accepted and starting in September, cvc to medicine 6 year course at UBA.