However, even this definition presented is erroneous. Sola Scriptura is not accurate not only because it is not Biblical, but because it directly conflicts with the written Tradition.
Furthermore, the Scriptures don’t teach their own truth. Christ set up the Church to make sure His Word would be taught accurately, and not that just anyone would come along and misinterpret and teach falsely. So, sola scriptura naturally depends on one’s interpretation, and a rejection of the Christ established Church’s authority to teach these truths. One cannot just quote Scripture and claim as authoritative a meaning that was not intended by God. So, the the claim of the Bible as the prime authority conflicts with the Bible itself.
Among other problems with your post is that you badly misinterpret by saying it “only states what Scripture claims of itself in 1 Timothy 3:16 and it is the authority by which you judge tradition, revelation, doctrine and practice.” I believe you actually meant 2 Tim 3:16, which is “All scripture, inspired of God, is profitable to teach, to reprove, to correct, to instruct in justice”
which actually means “every part of divine scripture is certainly profitable for all these ends. But, if we would have the whole rule of Christian faith and practice, we must not be content with those Scriptures, which Timothy knew from his infancy, that is, with the Old Testament alone: nor yet with the New Testament, without taking along with it the traditions of the apostles, and the interpretation of the church, to which the apostles delivered both the book, and the true meaning of it.” In other words, yes it is profitable as the Catholic Church teaches, and is materially sufficient, but never says nor teaches that Scripture is formally sufficient.
A direct translation of Sola Scriptura from Latin provides “only Scripture”, and it does have a meaning that people know when the phrase is used. It wasn’t used until the 1500’s, and then to reject the authority of the pope (established by Christ). The early Church fathers knew truth and did not use something like this.
If you go to 1 Tim 3:15 and have the correct teaching of the Church as pillar and ground of truth, you have “the church of the living God can never uphold error, nor bring in corruptions, superstition, or idolatry.” The Catholic Church is true, because it was built by Christ, and a deeper discussion of this is for a different thread. If you want to seek truth, the burden is on you, because you haven’t shown much yet. If you don’t accept the truth, then not much else we can do for you.
Please give it another shot at understanding what was actually said, instead of what you tried to make it say. People who have no problem twisting God’s word, will do this in other places as well.