Ok, I'm kind of worried now because I'm not sure what to study in university, I am interested in electronics I like gadgets and technology, but I also have a liking to games and making games. I'm kinda confused

I chose Computer Science as a course I want to study in univeristy anyway because it is a broad subject but now I'm worried because I don't know if I can cope with it or not, since it involves advanced maths and I failed my A-level maths in college so I dropped it.
I've read a few articles on games design jobs and they don't sound too good, apaprently it's because so many young people like me want to do it that they just pay us low wages and we are worked long hours with less holidays, the other bad thing is we wouldn't be doing any significant probably just coding a small thing in the game. I don't wanna end up like one of those people when I could go to univeristy to study a course to get a better job that I would enjoy therefore I have thought about electronics but the universities require that you have A-level Physics and I do not have that qualification, so I've been really worried and panicing about this lately and I don't know what to do.
I know there are quite a few people in here who are older, mature and I was hoping you guys could maybe help me out... give me some advice.