nidalee vs bruiser

hey im a huge fan of nidalee and ivve been playing her ap only i dont really like ad nidalee now heres the thing when im playing nidalee im perfectly able to take out some squeeshys yet i cant do much against most tanks in most of the cases this seems oke cause they cant do that much to me either

how ever this gets really frustrating when im ahead in game and than lose 3v1 to a vi how the hack is ap nidalee supose to take out tanky dps ?

actualy in some games my adc wont be able to take them out than what ? im alright on kills but no one in game is able to stop this tanky dps what now ?