when i use the mouse in this game its hard to use it bease when i whant to move left og right on the mouse its like its going slow. if i take it fast and slow its like the mouse goes there i dont whant it too go

Play the game with a gamepad! The first time I played it, I used the mouse, too, and ran into similar problems. It turned out unplayable for me on the later stages.

Using a gamepad with two analog sticks gets rid of most your problems.

i have a wire less xbox 360 controler that i can use but i cant use the left stick ;(

Have you tried changing the mouse sensitivity? That might help. Otherwise, you should be able to get a gamepad working.

I actually liked playing with the mouse because I like having direct camera control at all times, but I understand why many players would prefer a pad for this game.

i have try that did not help me

The XBox 360 gamepad seems to have a problem with Psychonauts. BoomGroinshot has a solution on another thread of this forum. Take a look, it might help:

http://www.gog.com/en/forum/psychonauts/any_problems_with_the_360_controller_here_is_how_to_fix_it

I would recommend to invest 10-15 € in another gamepad, as this configuration relies on the digital pad for movements.