Can My Cousin Close My Aunt's Trust And Remove Me From Benefitting From It?

Location: GA

My Grandma created a trust before she died that went to my aunt (long boring family drama but her and my Dad weren't on speaking terms). When my aunt and uncle got it they put their estate into in which I was a beneficary and trustee and recieved a portion of their estate. My role as trustee was supposed to end when my cousin turned thirty.

Now my cousin is thirty and she is trying to "close" the trust. I'm not sure exactly how that works and the firm who are doing this won't answer my questions. But she is trying to revoke my payout from the remainder of the estate, including an investment account in the estate.

I was supposed to be in charge of the trust and get the whole thing if anything happened to her but now she is saying that she is making her SIL in charge of a new trust if anything happens to her and her husband and her SIL will get the payouts I got from it until her daughter is old enough. That's all she told me and then she got annoyed with me asking questions and cut me off, I think she is trying to take the money from me. The law firm/estate firm are also now ignoring my calls and said I have to make an appointment. They just claim my benefits from the trust are done which doesn't make sense because I thought they were continous.

What specifically doesn't make sense to me most of all is that there was gold and platinum in a safe deposit box in that trust that I had access to because it came from my grandma. But I went to go check and they took everything out of the safe deposit box. The bank told me I'm still legally an owner/have access so why wasn't I informed?

What are my rights here? I think my cousin is trying to steal my grandma's and aunt and uncles money that was supposed to go to me. I don't trust (no pun intended) the attorneys that are on my cousin's side. Should I get my own attorney?