My twitter has been hacked! I tried changing my password a lot of times and he can still access my account


I thought that it was just an error when I saw that i have “0” following. So I followed them again. After a few hours it went back to zero and I saw that my display name has been changed to “bull shit”, my bio has been changed and blocked some of the people who follows me. I changed my password because I knew then that my account has been compromised. Everything went good for the first 6 hours. Then when I woke up, my display name has been changed again, my following went back to 0 and the hacker even tweeted using my account. I don’t know what to do. It seems that even I change my password, the hacker could still get through. Please help me. :frowning: