In reality, even those who have supposedly given control of their lives to Jesus really haven't. IMO,
I like to think I have given my life over totaly to the leadership of the Holy Spirit. But the fact remains that I live in a sinful fleshly body. So many time I take control and when I do I mess up I find as long as God is in control things just work out better.
Now the bad news:
Roma 12:1 (KJS) I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, [which is] your reasonable service.
1Cor 6:19 (KJS) What? know ye not that your body is the temple of the Holy Ghost [which is] in you, which ye have of God, and ye are not your own?
1Cor 6:20 (KJS) For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God's.
1Cor 7:23 (KJS) Ye are bought with a price; be not ye the servants of men.
Now if you have been born again. That means that you have been bought with the blood of Jesus and the suffering he did at Calvary.
That means God own's you.
He asks that you willingly present your body as a living sacrifice, which is a very cheap price to pay for not spending eternity in Hell.
So from the moment you are born again you are not your own you belong to God because he redeamed you that is He paid for you.
Can you get by without letting God have control I guess you could because Paul tell us some will be saved so as by fire.
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1Cor 3:15 (KJS) If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.