That's the thing - you rely upon "man's tradition" too. You're Reformed - and despite your protestations to the contrary, you depend upon the exegesis of your forebearers to come to your own conclusions. You rely upon fundamental assumptions derived from your own experiences and those church teachers who influence you. I don't mean to get all post-modern on you, but the simple fact is that no one can read the naked words on the page of the Bible and interpret it by themselves without depending upon some teacher outside themselves. Every single person brings assumptions and prejudices to their hermaneutic; it is unavoidable.
You may object, "No! What I believe is what the Bible says, and nothing more!" No, you believe what you think the Bible says (and, for what its worth, I agree with you a lot more than I disagree with you), but in the end, it's only our best, educated guess.
So, enough of the Reformation-era polemics - on both sides that reduce the debate to bumper-sticker length. It is a false dichotomy to say that you rely upon God, and the Catholic Church relies on men's Tradition. You do too, just as much as they do.
How's the water?