Why do I lie so much?

i noticed i have lied all my life since i was a kid even over small things i have lied so much now i am 16 i have even created my own past like my name where i am from and my family and what i do i have done it to seem more cool or interesting and i write books so i think it just kept stacking until i built a character of myself who do i stop this lying and be myself again
Why do I lie so much?
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