If you Love God, and are truly sorry for rejecting His Words, then just show Him. Seek to hear His instructions, then do them.
Do you need someone to "Seek ye first the Kingdom of God and HIS Righteousness" for you? This will expose to you where your heart really is. If a man just wants to hear smooth things and be socially accepted by this religious franchise, or that, then they will "Go to the Priest" of a certain religion and follow his instruction. But if they truly seek from their heart to "Prove what is that perfect, acceptable Will of God, then they will go to the Father, and Worship Him, for HE seeks such people, at least according to Jesus.
I don't believe this is even possible without His Sabbath that Jesus said was "Made for man". And for me, why would I want to find another Path anyway? If God's instructions were good enough for His Son, and Every Example of Faith in the Bible, then they are most certainly good enough for me.
My advice to my Brother is to ignore all the "other voices" out there, get the Oracles of God, and commune with Him One on one. As the Scriptures teach.
Rom. 12:1 I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service.
2 And be not conformed to this world
or it's religions) but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.
Then, after you have discerned between God's truth and religious traditions of men.
Phil. 2:5 Let this mind be in you, which was also in Christ Jesus:
6Who, being in the form of God, thought it not robbery to be equal with God:
7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men:
8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
9 Wherefore God also hath highly exalted him, and given him a name which is above every name:
10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth;
11 And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father.
12 Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling.