From a fellow God-loving teen, a piece of advice:
When in doubt, pray and read His Word.
Scriptures are the one true answer in this corrupt world my friend.
Ephesians 2:8 KJV
"For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:"
This verse says that by trusting in God and accepting Jesus' salvation (as discussed in the "Romans Road" in Romans), that is an act of ultimate faith. The Bible (GOD) says that by being saved by Jesus, you're saved for good. Ephesians 2:8 is saying you do NOT and will NEVER get to Heaven because you were a good person. It will be because of Jesus' salvation covering your sin.
And one last verse,
John 10:28 KJV
"And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand."
This is saying that since you are saved, you will NEVER EVER EVERRRRR have even the slightest chance of going to Hell, or losing your salvation.
You will always be saved.
Now I say you should find a good church, become a part of the youth group, and study your Bible. Jesus loves you, and He wants you to grow as a Christian. I hope you will message me or contact me somehow if you ever have any questions or worries.
*I will be praying for you*
Your friend, and a fellow teen,
Moose