Let me get this straight - you're an adult, living at home, where your father beats on you, your mother looks the other way, and you cover it up? If I were your FI I'd be seriously reconsidering attaching myself to your family too!
You need counseling. You are being abused, and you appear not to have the skills required to identify and properly process that. If I were you, I'd leave your parents house immediately, and find a safe place to stay. Begin counseling to understand what has been happening your whole life. If you want your H to be confident you the two of you, you need to be confident in yourself first.
There's so much more to say, but the overwhelming advice is to leave and get help. Best of luck to you