Stop "proving" your a christian, instead earn yourself the right to call yourself a christian by living in obedience with God and listen to Jesus' teachings. A captain has the right to be in the rank he is in because he earned that right and by his experiences in warfare. God doesn't owe us anything because we are sinners but its only by grace that we are saved by faith and belief in Christ Jesus alone for salvation.
Its not that we "earn" anything but God gives it to us (salvation along with good works) by his divine love and mercy on us (grace) it is a free gift by putting our faith in Jesus alone for salvation. After salvation James in the bible says, then the good works come that God gives us to work with (spiritual gifts) to accomplish his goal and purpose for us.
He gives us the tools to work with and its up to us what we do with them, to grow spiritually living off the word of God and God making us more "Christ-Like." We bring God glory/will by bringing his kingdom to earth as it is in heaven (thy kingdom come thy will be done on earth as it is in heaven.)
We walk in the spirit that keeps us on good ground, submitting to God and shunning temptations and or flesh (satan the tempter). We go from slaves to sin to slaves to righteousness (always wanting to do the right thing for God out of respect) as we feed out spirit Gods word that teaches us how to live. And God guides us along the way the more we grow with him as we rest in Christ Jesus laying our burdens, worries, and failings upon him and living in faith.
When we know God more (through his word) and his needs and wants, we crave to fulfill his needs and wants out of respect for him because of our love toward him (fear of God). So knowing God is very important because as much as we know our mother and her needs and wants we want to please her and listen to her.
Luke 23:30-43 (New Living Translation)
32 Two others, both criminals, were led out to be executed with him. 33 When they came to a place called The Skull,[c] they nailed him to the cross. And the criminals were also crucified—one on his right and one on his left.
34 Jesus said, “Father, forgive them, for they don’t know what they are doing.”[d] And the soldiers gambled for his clothes by throwing dice.[e]
35 The crowd watched and the leaders scoffed. “He saved others,” they said, “let him save himself if he is really God’s Messiah, the Chosen One.” 36 The soldiers mocked him, too, by offering him a drink of sour wine. 37 They called out to him, “If you are the King of the Jews, save yourself!” 38 A sign was fastened to the cross above him with these words: “This is the King of the Jews.”
39 One of the criminals hanging beside him scoffed, “So you’re the Messiah, are you? Prove it by saving yourself—and us, too, while you’re at it!”
40 But the other criminal protested, “Don’t you fear God even when you have been sentenced to die? 41 We deserve to die for our crimes, but this man hasn’t done anything wrong.” 42 Then he said, “Jesus, remember me when you come into your Kingdom.”
43 And Jesus replied, “I assure you, today you will be with me in paradise.”