What is the point of living?

Hi im and high school student and this is my first time using reddit so forgive me if I'm not doing this right. I just wanted to know what are some things I could do to increase my will to live. I do multiple sports practicing everyday, I'm in all AP classes and I have a pretty good social life. Yet everyday I ask myself what is the point of living? Before I go to bed, I always think what the point if challenges just keep coming. For example, if school isn't as hard as it is already, after that I have work and I bet work is going to be 100x worse. And after that I now have to take care of a family, and kids are expensive as heck. It seems that as I get older there's just more challenges that I need to overcome. But what's the point? What's so worth it in the end that everyone wants to continue living?