The Bible does warn us about the danger of endlessly ignoring God and leaving Him out of our lives: "A man who remains stiff-necked after many rebukes will suddenly be destroyed—without remedy" (Proverbs 29:1). These are solemn words and you should take them very seriously.
But the fact that you are concerned about your spiritual situation tells me there's still hope for you. The person in the most danger spiritually is the one who feels no need of God, and is unconcerned about his or her spiritual condition. That person's heart has become so callused and so hardened that they can no longer hear God's voice convicting them of their sin and calling them to repent and turn to Christ.
The most important thing I can tell you, however, is that God loves us and is ready to forgive anyone who truly repents and trusts Christ as their Lord and Savior. No matter what you've done, God still loves you and wants you to be part of His family forever. Jesus' words are for you: "My Father's will is that everyone who looks to the Son and believes in him shall have eternal life" (John 6:40).
Don't stay on your present road any longer; it will never give you the happiness and peace you seek. Instead, by a simple prayer of faith confess your sins to God and ask Christ to come into your life. Your life can be different—beginning today.