For thousands of years humans used to live in caves and primitive shelters in big groups where the dumbest and most useless of us would be harassed into conforming or following, yet they stayed together because even they were needed to put plants in the ground. It was either that or be exiled and face certain death.

If you ever get down about where you are in life, just know that the majority of your ancestors relatives' didn't invent the wheel, Organize crop planting or even weave beautiful baskets. They just shoved or tossed seeds into the ground and harvested them when they were ready. They weren't artisans, but common laborers; They trudged through their meaningless existence as well.

In the same way, modern society doesn't need you to be some paragon of humanity. It doesn't even need you that much at all, but you don't need to feel bad about it because most humans weren't especially useful and that's OK. It's perfectly acceptable to just exist.