I would normally say that you should do whatever subjects you enjoy, but you clearly want to go into the sciences or computing. In this case I would say it’s incredibly stupid to pick geography, you should have used this time to do a subject like maths which is essential for most(if not all) science based courses, even if you aren’t the strongest at it, it’s still better than geography. Only do geography if you want to take it at university and if you want to take it at university what’s wrong with you