I wanted to try to get into archery so i looked around and i found a used fred bear blackbear some guy had posted for $25
Something should have told you at that price, you were buying a very well used bow. I see pawn shops loaded with these old bows that are just wall hangers and dust collectors. I don't know if you have any recourse as he could say, "you dry fired it and caused the crack". Heck, I don't even know if
Bear Archery makes a limb still for your bow.
Spend the money on a good bow and you won't be sorry.... remember when you buy used, your left holding the bow without a warranty from the company for repair. JMHO on that matter.