Dealing with the past...

I am so happily married now and I have a 5 month old son. We are very strong in our Christian faith for several years now. Before I met my husband, when I was in high school and college I had really strayed from my faith. I was very lost and went through a phase of being promiscuous. There is nothing I regret more in my life than this time. I wish more than anything that I would have waited until marriage so that I could share that gift from God with my husband. I have confessed my sins and done my penance, but I still feel almost traumatized by it. I am wondering if anyone has advice on how to deal with these emotions and shame so that I can move on with my life and not carry this guilt anymore.