people always trying to find the true you

What's the true you i mean we all think different maybe no one can understand the true you . Will today me friends were like your just like me because i want to graduate early . And i'm like how does that made me like you . Will to me it does we have the smiliars but weren't the same you know what i mean . So today i felt weird because these people that i go to bible study yet to figure that i have many different personality and i can be one thing at one point another . An really i don't like people knowing everything about me . See when i was grow up as a kid i want people to have a piece of what they knew and then get together with other who knew me and talk about the thing i did with them or how i acted . And by the time they talked to started i knew and found the fact and lys (before i was a christian) and know me . That piece of me would be every where . And that no one would know the real me that i was every personality in the world so they though ;but alot people are telling me that it will hurt me later but i'm thinking it won't because they won't know what will hurt me ...