Can a minors earnings be recovered from a guardian as legal adult

When I worked as a minor I earned $62,000 working that was supposed to be kept in a custodial account for college but was not used for that purpose. I have now graduated college and have yet to see any of the money that was entrusted to my guardian in my name. There are tax returns and checks stubs that were hidden to conceal how much I had earned but a social security earnings check proves that between 2002-2006 I earned over $62,000 in wages from my employer. My question is if the statute of limitations has deemed the fund irrecoverable. My guardian