Social Security Survivor Benefits?

When I was 3 years old my real father died in a fire and we started receiving (brother and I) his Social Security money. My mom remarried around 3-4 years later to a man who adopted us. He made great money, probably around $80,000 @ year in the mid 70s up till 1987 when I finished high school. She kept getting the Social Security money even though when she remarried and he adopted us and he was well off.

They divorced when I was about 11 and I even was made to live with him my junior and senior years because I had a party when my mom was out of town. LOL. My mom wasn't ever around and continued to get/use/save the money for herself. I never lived with her the last 2 years, but the money was being sent and kept. She kept all of the money even though her new husband made great money and when they divorced when I was 11 yrs old and she got child support and alimony from my step dad she still continued to get the $$. I was never told anything about this.

The only reason I did find out is I saw a check with my name and hers on it for over $1,000. I've been frustrated with my mom lately and I'd never sue her or even throw it in her face. I just wanted to know for myself. Mainly because I was never told I could go to college with part of that money or none was put aside for me. I feel like my own mother screwed me outta my deceased father's money that was meant for me. I know it takes a lot to raise children, but she was remarried (took him to cleaners in the divorce) and now is married to a millionaire for her 3rd marriage. She owns 4 houses and I'm broke and she never helps me financially if I'm struggling. But, boy she lectures me at every opportunity given.

I know people who get SS money and they're keeping it for their kids. My uncle didn't talk to his sister (my mom) for 15 years because of this because he told her the money was for us and not her. Am I right for feeling cheated? It was hard enough growing up without a father and I'd like to not feel cheated.