all game net Packets are encrypted

do you know how? or mb how to debug and turn encryption off?

Turning off the encryption would make the client crash, or bug, since the packets received from the server would not make any sence anymore.

Therefor you should just analyze the encryption/decryption algorithm, and try to decrypt packets on the fly. (You will need assembler knowledge to do this).

really, i have no idea what the encryption is, every packet for same action comes out totally different

Then they probably use something like an OTP. Try analysing the assembler code before any WS2_32.send calls. This may help getting the encryption broken.