Someone please help me?

I don't really get how you can say that you're good at science but you suck at math... both go hand in hand (at least if you go to the advanced science courses, you need advanced math).
Maybe you just didn't have the right teacher? I never had a good math teacher until my penultimate year in highschool. Before that, I always flunked and had to resit my math exams. Then I got this teacher who had passion, who made me passionate about math... the result is that I never had to study math again (I all got it from sitting in class) and I was the best in my class.
I do have to say that I have a far above average IQ, all the troubles I had before was just that nobody could make me feel any passion for anything. Maybe that is just your problem as well... go find someone who can really explain it to you and make you love math.
That being said, you are not going to make your parents proud of you if you are going to do something that doesn't make you happy. Lots of people don't even have a highschool degree and still make very good money and live a very happy life. People like plumbers for example, they make good money, are their own bosses and they never had to go to university for it. Not saying you have to become a plumber, just saying that you might want to have a look around to see what else there is. Try and find out what your passion is... if you can make your job out of a passion, you'll have the best job you can ever have and you'll never have to look at it as "work", you just go out and enjoy yourself. Those people are best at what they do and they'll never have to worry about finding a job.

Clearly you don't excel in an academic environment. So stop considering university - you can't currently qualify, and would probably be miserable.

Look at your strengths, and consider vocational course and apprenticeships where you can use your strengths and gain skills, and work towards a career.