Lenna, you will be fine. The people who love you will chalk up your zealousness to your age and youth. A LOT is forgivable and many will be happy to indulge your little folly.
If you can go to a trusted non JW family member and tell them whats going on, your doubts, etc, they will likely support you and get the word out so that no one bugs you about it. (depending on your family,some get nosy, some just sweep under rugs of love). People that love you will be RELIEVED that you are over "that phase'. don't be offended, they will call it your JW phase forthe rest of your life and that is probably the extent to which it will ruin you. OTOH, you will be OUT and you will not be dragging in your husband or future children.They are going to love you and not give a crack about this.Your kids will bless you as they go to scouts, play sports and sing in the school choir.
You have all of life before you. Soon this will just be a bad choice that you quickly righted. If Brittney Spears can come back, and Robert Downey Jr. can, then your little escapade with the JWs is so rightable.
Right on, girl!