Hi layne!
Welcome to the boards!
On to your questions:
So, I am curious about what kind of things I should do to make myself a better chrisian.
Well, generally speaking, the answers to your questions can all be found in your Bible. So, I suggest you start studying. Don't worry. It's not like school work. God will increase your hunger for His Word. To start with I suggest studying the atonement and forgiveness. If you desire to have a loving relationship with God, don't worry, you're already saved. God is already working in your life, changing you so that you will desire to be conformed to the image of Christ.
Some of my personal favorite books in the Bible are Matthew, Luke, Acts, Romans*, Ephesians*, 1 Corinthians*, and James.
(The * notates my favorites of favorites
)
Being a "good" Christian means being obedient to God. To be obedient to God you must learn what God commands of you. The Bible is one of the best sources for that instruction. Another good source is church elders, or people who have studied the Bible in depth for a while. Remember, though, they are people and as such are able to make mistakes. Test everything you hear against the immutable Word of God. Another thing you can do is to pray. I know it might seem uncomfortable at first. It will be the same as having a conversation with someone you don't yet really know. However, just like with your fellow human, talking to God is one of the best ways to gain knowledge about His Will. Thank Him for His gift and pray that He gives you a hunger for His Word (I admit, some parts are difficult to get through). Study your Bible daily, and pray regularly and just watch the amazing changes God will bring about in your life.
Another thing I wonder about is the kind of music I listen to...how can I tell whether it not fit for a christian to listen to? (I tend to listen to heavier stuff)
Different people will give you different advice about this. My advice is to ask yourself if the music you listen to is glorifying to God. If not, put it off and put on more godly righteous music.
I feel guilty every time I do something I know is wrong.
Don't worry. It's good that you feel bad. Feeling guilt or conviction or remorse is something that get painted as bad in our society. But the Bible says differently:
Hebrews 12:5,6
"My son, do not despise the chastening of the LORD,
Nor be discouraged when you are rebuked by Him;
<SUP> </SUP>For whom the LORD loves He chastens,
And scourges every son whom He receives."
Will God keep forgiving me, or is there a point where he won't?
God doesn't "keep forgiving" you. He
forgave you for your transgressions, past, present, and future. You now live in a "state of forgiveness." We are constantly in need of being forgiven because we continue to sin according to our old nature. Therefore, God, by the death of Jesus, made atonement for those sins you have, are, and will commit. Just remember, though you may sin, you should always ask for your Father's forgiveness. It shows that you acknowledge your wrongdoing and wish to repent of it, that is, turn away from your sin and turn towards God in obedience. To ask for forgiveness and then continue to do that which you know is sinful is of no benefit to you. And, as to the second part of your question, no. He has forgiven you when you were unresponsive to Him and fallen.
We have His promise as a consolation to our fallenness:
Philippians 1:6
being confident of this very thing, that He who has begun a good work in you will complete it until the day of Jesus Christ;
BTW, I am not baptized yet.
Out of obedience you should be baptized. However, this is not a salvitic issue. We are saved by God's grace and not through any works of our own. Baptism is the outward manifestation of inward regeneration.
God bless.