Jose Canseco's daughter, Josie -- a Victoria's Secret model -- is firing away at her critics ... insisting she never received a leg up, at least monetarily, from her dad or anyone else in her family.
Josie unleashed on her haters in a series of Instagram posts on Monday morning ... claiming to be entirely self-made.
It's unknown what was exactly said to her or about her that set her off -- but she clearly wanted to let everyone know that despite her dad's huge MLB career, she grew up far from wealthy.