Earned $4,800 From Youtube, Suspect My Income Was Spent By My Father

(Edit: This is happening in Greece.)

I started a YouTube channel when I was 13. At the time I was making videos consistently and it was my main hobby until I got more popular and managed to get monetized sometime in 2019. My father helped me to sort out the required documents needed for AdSense and we finished the whole process after a month or so, with his own details, so the income would be transferred to one of his unused accounts. Back then, I focused a lot on making YouTube videos and trusted him to keep the unused account and consider it as informally being mine. As time passed, I started dropping interest to YouTube but the channel was still making a lot of money.

Fast forward in 2023, I turned 18 and I decided to open my own bank account. I then changed completely the information on AdSense, so the income is transferred to my own account, though I completely stopped making videos for many months. After multiple family crises and financial problems, that is when I started worrying about the safety of the money, having learned meanwhile, about how exactly banks function, as well as their related laws/regulations.

I decided to have an open conversation with my father about the money, the discussion however has been going for a couple months now and he is not transparent about where the money has gone. He claims the account has a so called "vault", to where any money deposited/transfered after a week is sent into there and there is the need of a bank assistant to "enable authorization" to the vault and have access to it. When I asked him about it, he claimed bank assistants are not as "common". He made me check his e-banking account and there was also nothing. I kept persuading him to go to the bank and see what to do with the money but he seems to avoid me and I start to not believe what he says anymore. He claims it is a very tedious process to to go the bank and sort this out and the fact that he has "other" things to do and cannot get the time when this is not true. In fact, he even gets mad at me, when I take it a step further, mad with my OWN money. He consistently says in a calm tone "Yeah... We will... see about that topic."

I am suspicious he spent them all, the money I earned as a teen but I have no proof to prove it besides AdSense's records of transactions. What do I do?