Looking for advice from high-end collectors.

Sorry in advance if this isn't allowed or if it breaks any sub rules

Hey everyone, I managed to win a Freedom card from the Newtype Challenge a while back, but honestly, I'm super out of the loop and just realized people are talking about values around 8k for it.

I've never held anything even close to this expensive before, so I have no clue what I'm actually supposed to do with it now. Do I just keep it in a binder, send it somewhere to get graded, or try to sell it?

Appreciate any serious insights or recommendations on handling a card like this. Thx!