I want to do psychology, maths and computer science a levels, possibly art (a hobby of mine) as well but my current GCSE's grade for Maths doesn't fulfil my course requirement for maths, I am currently working at a 4 but need to get a 7 or higher but I'm not even sure if I want to do maths a level - main reason is because it will give me more opportunities for university courses, etc. and not because I typically fully enjoy it and I am not fully certain on what I want to do after A-levels and I don't know if I will have A-level regrets because I don't know what career path to take.
I have never done computer science before this and main reason why I want to take it is because of the IT career being a more popular and advancing career so it can give me more opportunities and financial benefit and I don't know much about it either. Any advice for A-level choices and GCSE strategies?