Ask HN: What is something that needs to be done if you were of my age(22)?

Given that the HN community is so huge and diverse, which is one of the best parts of it, you get to know about a range of perspectives on a spectrum.

My age is 22, and I am learning, discovering, writing, reading, listening, and observing. You, my friend, on the other hand, might be reaching close to the end of your age and ability spectrum. You can't do everything in this lifetime, so I ask, "What is something that needs to be done given that if you were my age right now?".

I ask because you have seen more of the world than me, met more people, gained more experience, & in the end contributed more to society. I look forward to knowing your answer so that the younger generation can actually take this forward.