You may have heard of James Howells and his $11 million plan to find a hard drive with $181 million in Bitcoin. That is a risk of self-custody. His chance of finding his bitcoin is actually not too small.

If you had bitcoin held on FTX, there is no amount of money or time that will bring those coins back. They are gone. You have a 0% chance of finding those bitcoin.

Not your keys, not your bitcoin.