How do I get “born again”?

Romans 6:4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.

2 Corinthians 5:17 Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.

Jesus died and rose again nearly two thousand years ago. How can I be buried with Him and be risen with Him?

Ephesians 2:8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:

James 5:15 And the prayer of faith shall save the sick, and the Lord shall raise him up; and if he have committed sins, they shall be forgiven him.

What is this prayer of faith that saves me?

This is not a prayer that issues forth from your mouth, it comes from your heart. It begins with acknowledging that you are dead in your sins and that you are helpless to help yourself. If you want a verbal example it might sound like this.

Luke 18:13-14 And the publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be merciful to me a sinner.  I tell you, this man went down to his house justified rather than the other: for every one that exalteth himself shall be abased; and he that humbleth himself shall be exalted.

There is nothing so special and peculiar about a prayer of faith that there has to be form and correctness. It just needs to be heart felt.

Psalm 44:21 Shall not God search this out? for he knoweth the secrets of the heart.