Jesus should be number one and the center of your life in order to be a successful Christian. The Christian is repsonsible for the spiritual development of their own minds and will give an account for themselves at the judgement seat of Jesus Christ.
Revelation 3:14-20: 14And unto the angel of the church of the Laodiceans write; These things saith the Amen, the faithful and true witness, the beginning of the creation of God; 15I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot. 16So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth. 17Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked: 18I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see. 19As many as I love, I rebuke and chasten: be zealous therefore, and repent. 20Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.