Lisa, this is wonderful! If you have trouble releasing the pain and mistrust, just remind yourself that YOU were the one who wanted a second chance, and by God, you GOT it!
Look at your situation and think to yourself how many of us on the boards would love to be in your shoes. Appreciate it and acknowledge that the pain and hurt of the past will hold you back only if YOU let it.
Forgiveness is a gift you give to yourself...Now where have I heard that before?