One of the most difficult things to deal with when beginning dating after a divorce is the amount of insecurities that a failed relationship leaves. Most people are uncomfortable when it becomes time to begin dating again. Their confidence levels may have been seriously eroded and it may take some time for them to be as successful as they are hoping to be.
It does not matter if you have made many mistakes in the past, as long as you learn from them and do not repeat the same again. Just understanding the amount of loss that comes from ending a relationship can help you to avoid this situation. Many people remain in a relationship just to avoid this type of problem. However, if you have separated, you might decide that you should hook up with the first person you find just to avoid this problem.
Deal with your feelings instead of ignoring them and you will be better prepared to avoid insecurities.