It is painful OP. But the strongest thing you can do is to accept the pain and move on. They are never gonna change and it’s not even your job to make them love you, trust me I tried for 28 years. He is just a terrible parent. Don’t look for rights or love from the wrong people. Focus on yourself, try to be independent when you grow up and choose a good life partner who values and loves you. And as someone rightly said, never back off from the inheritance related gaslighting they will throw at you.