I dont know how to get past this feeling

I feel so broken and lost I'm in a great relationship but I see the relationship, his family has, and the support he gets from his mother and father I can't help but be jealous because I don't have anything close to that. I talk to my mom from time to time but we have always had a rough relationship. She's never really supported me. It was always toxic and she had an alcohol problem still does often and I feel sad and down because I don't understand why my parents couldn't give me the love that his parents give him. How do I get past this I'm a mother myself. I'm so supportive to my children I'm patient I listen. I try to help them through their issues where as I was always told I was milking situations to basically get over it I was beaten, battered by my parents. My father used to starve me. There's so much I can go into from childhood trauma, but as an adult here I am, I just can't help but wonder why was I put into this world?