Anyway, as others have pointed out, it seems OP doesn't care about his/her forum account as much as his/her email. He/she's got personal documents in his/her email. Unfortunately, this forum does not offer email recovery services.
OP, please contact the support of email provider and present your case in detail.
Since i use Google email. so i send a report to google yesterday. i am now waiting for the result.
According to BPIP report ,the hacker not yet changed the orginal email from the bitcointalk account. maybe hacker sold my account with orginal mail for get high price.