Is there a point to life?

Why are we living? Some people might argue that it's for the impact we leave behind us. I disagree because a normal civilian's impact at most might last a generation or two after they die. Famous people leave bigger impacts, but even their impact disappears eventually. If everything will be gone one day, what is the point? We are desperately trying to preserve this hellish life for no reason at all because everything will disappear. We struggle day in and day out, putting ourselves through hell. Why do we hold onto this thing called life if there is no point?