right now i have a 7 3 bic and im kinda getting bored of it and i want to get a perfromance board but what size should i get or brand?

right now i have a 7 3 bic and im kinda getting bored of it and i want to get a perfromance board but what size should i get or brand?
what is your height and weight ? how long have you been surfing ? what do you like and what dont you like about your BIC ?