mind maxxing / charisma maxxing

[future slavic chad]

so im tired of being the weird dude, the dude that has no personality and even if i do im too scared to express myself. have any of you went from introverted to a charismatic guy without it coming off as fake? i guess i cant expect much from here since they'd probably fucking leave. but in case there is someone share some tips or something idk.