idk if it was on this site or some other. all i remember is that it was a do over kinda story setting circa 1970 into childhood self. protagonist was boxing and motivating girls to box. he used his future knowledege to hoard silver. i think there was also something about him being some kind of hero during a terrorist attack or something, as well as helping out the military.
if you know anything even remotely similar please respond
EDIT: found it, it was masquerade on alternatehistory