Sorry, you still got it wrong. Anyone who repents of his sins and reforms his life WILL make it to heaven, Protestant, Jew, heathen, atheist, or whatever. Jesus made it clear that Abraham and others of the Fathers were in heaven, and clearly none of them were Catholic, nor had they received any of the Church's Sacraments.
So you just have to say (honestly) that you repent of your sins and then act accordingly? You can remain a Protestant, Jew, heathen, atheist, or whatever?