Dont worry so much. Matthew 6:27 NIV [27] Can any one of you by worrying add a single hour to your life? It doesnt matter what "denomination" you are. It only matters that you know John 3:16 NIV [16] For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. Seek to strengthen your relationship wity him. God's love is so great, it can't be simply defined by religion, cause its not about rules, its about love. He wants you to spend your time trying to be better for the kingdom and so things for the kingdom of God. You dont have to be "catholic" as it is defined. Its a lot more complex and even people within one religion think differently and have different beliefs. You got this, keep praying, and just focus on God.

When you pray, pray to god

Focus on God and read the Bible.

denominations are man made. No one comes to the Father except through Christ. No priest is needed after Jesus died for our sins. He is our high priest. Father I am so thankful I can come to You directly. Teach me by Your Holy Spirit the things I need to know to love and serve You with my whole heart.

He loves you

Jesus is the way, the truth, and life. No one can go to Father except only through Him. I encourage you to PRAY to be close to God.