I am married to woman that lives by her self and she is completely dependent on her self. We are married for…

I am married to woman that lives by her self and she is completely dependent on her self. We are married for one year but we have still long time for our marriage to end. However we started to have some problems together and we both believe that we cannot live with each other any more. I wanted to know, is it possible to end our marriage before the time that we agreed on by me saying that word that she is divorced?