The problem that I see with Biblical fundamentalism is that it seems to reduce faith to dead textualism that is devoid of a living communion with God and not just reading it.
For it is not the hearers of the law who are righteous before God, but the doers of the law who will be justified.
Romans 2:13
As St. Gregory of Sinai, a 13th century Greek monk, who is considered a saint by Catholics and Orthodox alike writes the following in his treatise: “On Commandments and Doctrines”
“Grace-imbued faith, energized by the Holy Spirit, alone suffices for salvation, provided we sustain it and do not opt for a dead and effectual faith rather than a living and effective faith in Christ.”
http://bit.ly/saddKM
I encourage your studies to refocus on the ministry of God the Holy Spirit in each and every believer.
If you are drawn to place faith in the authority of the RCC, then first place faith in Christ, remaining obedient to legitimate authority, but always focus on what God has provided and His active work in us, through faith in Christ.
Prior to study return to Him and confess all known and unknown sins to Him, so that while in fellowship with Him, He may grow your spirit and soul while studying His Word. (1Thes 5:19, 1John 1:9)
Here is a listing of a few verses which might assist your efforts, which in so reading, God the Holy Spirit might work in you.
The indwelling of the Holy Spirit in the believer’s body is found in Rom 8:10; Gal 2:20; Col 1:27; 1 Jn 2:24; 1 Cor 3:16, 6:19-20; 2 Cor 6:16.
Joh 14:23-26
(23) Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.
(24) He that loveth me not keepeth not my sayings: and the word which ye hear is not mine, but the Father’s which sent me.
(25) These things have I spoken unto you, being yet present with you.
(26) But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
2Ti 3:15-17
(15) And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
(16) All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
(17) That the man of God may be perfect, throughly furnished unto all good works.
Rom 8:16,26