Before you do something as disastrous as rejecting sola scriptura, which most definitely was the teaching of the church for the first 3 to 4 hundred years, I suggest that you read this book. It takes modern Evangelicals to task as well as Catholics for rejecting the historical teaching of the church on the authority of scripture.
Don't forget that another word for "yardstick" is canon. Hold fast to the canon or you'll be adrift at sea.
Before you take this gentleman's well meaning but wrong advice, please read the works of the Fathers of the Church. Sola Scriptura was definitely not the position of the Early Church, and was unheard of until the late Middle Ages.