Guys ive been out of the country for like 2-3 months so im now back. I wanted to play the game but i dont exacly remember the pass . What should i do ?

You will have to just keep trying to remember it. I don't know anyone here who has successfully been able to recover their password through Wasabii support, unless they can speak chinese on the phone.

You could try making a new account and leveling a new class in the meantime, except that there has been a problem with making new accounts recently that makes them unable to work in the game. Not sure if that has been fixed yet or not.