My miserable birthday

Today was my thirtieth birthday. It was horrible. My dad forgot and did nothing for it even though I reminded him about it a few days ago. I have step siblings and a step mom and they don’t care about me. I have had a lot of trauma. My mom hung her self less then 2 years ago. I miss her and she was my best friend. My grandparents are both depressed over it and no longer have a will to live. My step siblings moved in about 3 weeks ago and ever since my dad met them he hasn’t cared much about me and my brothers. I never see 3/4 of my brothers because they can’t handle coming home. I miss them. My mom fell into deep depression 4 or 5 years ago and wasn’t the same. She still cared about us and loved us though. When she died I was the one to find her. I was 11. I saw her hanging and almost fainted but I ran up to my brother who was just coming in and I grabbed him and showed him. He called my dad who told us to call the police. She had broken her neck and died. I cry almost every day because i miss her. And this awful birthday didn’t help.