"Our future destiny needs to be changed from the hell of God's righteous judgement to the heaven of God's gracious forgiveness in Christ."
What need's changed in your life? I think the above quote from Mark Dever in Mar4 (A biblical understanding of conversion) pretty much says it!
Nothing else will have such an effect on your life, changing jobs, changing schools, changing how you live, things you do or even changing your wife, your looks, style, changing the country you live in or changing any other thing is not as huge a deal as the change of destiny offered at the cross!