Last monday ,i got mail from yahoo at askang_85 seeking info about my a/c pword and id.Plz look into matter?

That mail was from yahoo customer satisfaction and they sought some information like my mail id,pword, date of birth, occupation and name denying which my mail was to be blocked for next 12 hrs. So i responded to that mail ,as a consequence of which my mail got hacked by some miscreant which i did not know at that time. Thereafter, on next day when i checked my same mail ,i found some fake mails being sent to different persons in the address book of my same mail that Ankur Singh Kang had lost his wallet at madrid,Spain and was asking for some monetary help of 2500Euros to resolve the matter.This is for sure that mail was sent by some hacker using my emailid:askang_85@yahoo.co.in I am extremely upset over this.Even I changed my pasword thrice to counter this phishing attack ,but all efforts were in vain.Kindly suggest me wat to do now? Plz look into this matter and do reply at the earliest. Mean while i have made my new mail id also .Can we identify the hacker/culprit??whose mail ended with extension .hk or .uk.