Confession is the time to receive God's mercy: we need it all the more when we are in sin. Confession is a great gift. We are all sinners and we will continue to each struggle with certain sins until the end of our lives. Who among us can say they have conquered jealousy, anger, fear, and pride? The important thing is to Confess frequently and keep seeking to do God's will and to get up when we stumble. God will not reject a repentant & contrite heart.
Recently I have come to see, with the help of my Confessor, that ALL sin stems from a lack of love for God. When we do not love and trust God, we become fearful. And what do jealousy, anger, and pride feed on? Fear. (Fearing we will not have enough, that we won't be loved if we don't engage in sexual activity, fear that we will not be happy or get our own way.) Perfect love drives out fear and removes much of the motivation for sin, IMHO.
Going to Confession and recounting your spiritual battles is an opportunity for you to think about what might be at the root of the challenges you face. Then you will be well equipped, with the help of God's grace, to meet those challenges with a new awareness and resolve.
Sorry for rambling...