What happened:
a) you were careless by reusing your password and also using the same passwords in multiple services.
b) this password leaked before multiple times and we showed you a service where anyone can purchase all your passwords.
c) among hundreds of thousand of users you were one the very few users who reused leaked passwords and was affected. You admitted that you reused a password from a previously leaked database.
d) our service is not hacked, no data breach happened, no funds were lost. If the app simply allowed hacking the bad actor would have stolen millions of dollars, which never happened.
Below is our post mortem explaining what happened in your case.
https://tab-trader.com/blog/The best course of action for you is to contact you local law enforcement.
Exchanges will be able to reveal bad actor identity because he was KYCed.
And you will be able to get your funds back.
Try to avoid the following your mistakes in future:
Do not to reuse old passwords
Do not use same passwords on multiple services
Do not use passwords with you name
Use strong unique passwords especially in financial services
Because ultimately your mistakes allowed the bad actor to simply login to your account. He was not even trying brute forcing, he just logged in. Because he knew your leaked password.