No, freedom of conscience doesn't mean that I concede that you know what's best for yourself. No, choosing hell is not the best for you. But you have a freedom of choice. You're free to show no interest when I try to talk to you about my faith. You're free to reject the gospel. You're free to love your sin and to continue to choose hell.

If you're a Christian you should believe that everyone is better off being saved. Not only in the next world but this one as well. Being saved gives us hope in this world and hope in the next one. Becoming a mature Christian will give you peace and joy regardless of what's going on in your life.