How do I act/dress/look like Trina Vega From Victorious?

My favorite tv show on Nickeledeon is Victorious and my faveorite characters are Tori and Trina and I wanna know how to act like Trina Vega because shes funny and popular and PLEASE NO RUDE ANWSERS also I wanna look like her I just don't feel like dying my hair brown