I don't understand what is meant when OP talks about "being somebody". There is some body across the street from me. It is moaning and wailing and there are about 10 EMTs and state security workers milling about. Two ambulances, a fire engine, and at least one patrol car are parked nearby with floods and warning lights blazing away. That is some body.
If you want to be some body that people remember, then you have a complicated road ahead of you. It seems like people are remembered or forgotten by mostly arbitrary causes. If your idea lasts a long time and people know the name of yours attached to the idea, then you are remembered, but how you are remembered is hardly up to you.
There is a difference between being remembered by people, with their faulty memories skewed by projection and anticipation, and then there is universal memory, which is impossible to negate. You can tell someone what you look like, or you can make a print of your body in wet cement. Your impressions are what will be remembered because they shape the universe. Forget what people remember; they already have forgotten anyway.