Not one word in the Bible -- not even one -- suggests that there will be a second chance after death for those who have willfully rejected Christ in this life and chosen to shut Him out of their lives.
In fact, the most serious mistake you could ever make would be to assume otherwise. Once this life is over, you will go into eternity -- either to that place of eternal joy the Bible calls heaven, or that place of eternal sorrow and separation from God that the Bible calls hell. The Bible's warning is clear: "Whoever believes in him is not condemned, but whoever does not believe stands condemned already because he has not believed in the name of God's one and only Son" (John 3:18).
These are solemn words, and I hope you will take them seriously. But listen: Jesus Christ didn't come to make you miserable; He came to give you life! Right now you think your life is full -- but are you sure? I doubt it.
If you don't want anything to do with God in this life, why would you want anything to do with Him in the next? But God loves you, and He put you here for a purpose: To live for Him. Anything less is empty and meaningless. Don't gamble with your soul, but repent of your sins and open your heart to Christ today. I have never met even one person who regretted coming to Christ -- and neither will you.