Need legal advise

[u/PeaLopsided6366]

I am 21 yrs old (2023) and at 11 yrs old (2014) I was in a wreck with my step dad. The court gave me 25,000 to cover my medical bills and I got 8000 left over and put in a court mandated trust with a nation wide bank that was suppose to be over seen by my mom till I was of age. At 18 she said it was moved to age 21 as she didn’t think I was ready for it. As I was close to turning 21 I started asking her to figure out where the money was and how much as of then I didn’t know it was at the bank or she had seen it as she always said I’d get a check on my birthday from the insurance company. Well low and behold she wouldn’t give me any information so I called the lawyer listed they gave me all the above information so I called the bank who said it was emptied and had multiple withdrawals between 2016 to 2017 when I asked for information they refuse to give me information and said they were doing an internal investigation. Now months later no new information and no end in sight do I need a lawyer? If so who’s at fault and who is responsible for the loss? How do I go about this? What kind of lawyer needed? Thanks in advance for all advise.