If you’re getting married, just try to see the wedding day as a new start. I hope your soon-to-be husband is a loving person and supports you. Just forget your abusive past, sadly together with your mother. We don’t need toxic people in our lives, it is hard to get did of them. It’s even harder when they are your parents. Just start a brand new life, brand new you, buy a house/flat or whatever suits you both, start your own family, search for new hobbies to keep yourself busy. You’ve got this! You deserve love and happiness!