Steam to Grinding Gear Games Account ??

Hello i want the other way ;)
I just played it on Steam put now dont want Steam anymore ...
so i want to play with the normal launcher but how ca i see my normal login data?
i cant login with my steam account ... Where can I see my login data when i dont want to play via steam
Do i have to make a new Account (by GGG) or can someone change it ? And whats with my old stuff if i have to create a new one

Email support@grindinggear.com explaining which accounts and characters you want to play, they can get your accounts linked properly. Use the email registered to the forum account here.