Hi table, do not fear these things. The Lord is far greater than you being a young Christian in your experiences and making mistakes. All I see is youthfulness and you having feelings of pride in wanting to be someone in the Lord. Don't think that God is judging you for this to the point where he is rejecting your prayers for forgiveness. That is a bad teaching which says that God won't accept your sincere prayers for Him to forgive you.
Anyone who has wanted to be somebody with God has been proud.
Try not to let your emotions lie to you as well by telling you that God won't forgive you. Emotions can produce all kinds of miserable lies in your body and your mind.
You said you were told that you took on a false prophet spirit. Is that right ? It sounds like some kind of extra biblical teaching. Whoever told you that hasn't got a clue about the Christian life. Tell them to come on here and learn some real Christianity.
In time you will see that the Lord is someone who listens intently to the cries of human hearts. He wants your heart to be his far more than him wanting you to have a prophetic ministry.