The are no "difficulties" in considering Scripture to be authoritative; it is the inspired word of God.
And God does not contradict Himself. If any tradition or teaching is contrary to the word of God, then that tradition or teaching is not of God. He has given us His word that we may have guidance and discernment and so we will not be led astray.
And God has worked through mankind in the writing and formation of His word, throughout the entire process. Without the word of God to turn to, we have no way of knowing for certain what is of God and what is not. Just because a teaching or tradition has been around for a long time, does not mean it is of God. (Satan has been deceiving mankind since the garden of Eden) We are to search the Scriptures and seek the Lord in all things so that we will not be deceived or led astray.
Relying on traditions apart from the word of God, especially when those traditions conflict with the word of God, is to open ourselves up to deception and being led astray. God has not left us directionless, we have been given His word, that we may learn from Him and know truth from lies.
Anything that is not in agreement with the word of God, is not of God. Just because a particular teaching or practice is church "tradition", does not make it correct.
The central question is, do you trust and believe that the Bible is the inspired word of God? If the answer is "yes", (as it should be) then you will not put any other teachings or traditions above the inspired word of God, but you will instead search the Scriptures in all things.
Blessings,
~Amariselle