Having proof of God would serve no purpose and, in fact, it would be counter-productive. If you want to choose God and escape the destruction that's coming, then this is what you need to know: faith is needed, not sight.
You Need Faith not Sight
The Name Above all Names
We have been given a name: Jesus Christ. This is the name above all names. This is the only name we can call on to be free of Mosaic gravity (M), the power of the grave pulling us down into hell.
Prepare Your Heart
Preparing our hearts doesn't involve special diets or exercise, it comes down to taking two simple steps: believing in Jesus Christ, and confessing our sins.
A Pure Heart
When we get saved we're indwelt by the Holy Spirit, and that cleanses us of whatever other spiritual problems we may have been facing. That's when we're ready to stand before the Lord because we're in Christ Jesus.