Some useful advice from Victor Hugo, and some dubious advice from me.
First VH's : "Have courage for the great sorrows of life and patience for the small ones; and when you have laboriously accomplished your daily task, go to sleep in peace. God is awake."
Now mine: As a fossil who has completed high school and a couple of degrees, what I've discovered is that the people who succeed (or have succeeded) long-term were the ones who learned how to apply themselves and to do the best they could. Some people who coasted through high-school based on a combination of looks, popularity, personality and other factors had rude awakenings when they hit university, or even the final years. Often, these people had never grappled with a challenge or an intellectual rough patch. That said, do your best to understand math, because it can get tougher down the line.
In all subjects and pursuits, do your honest best, and take pride in it. And while being respectful of your supportive parents, just strive to do your very best. In the long-term, your attitude and your professional effort will carry you forward, and in the short-term, you'll be able to go to sleep in peace.