Your effort to describe the problem deserves an answer.
But, it is still impossible to understandwhat you mean.
What is your native language?
Maybe, you can explain your problem in your native language, and someone can understand you and translate it.
Nonetheless, I try to describe your problem, how I guess it is.
First guess:
Maybe, you want a standard function for the control of a player and a camera.
If you want, that the player is only turning right and left, and the camera behind the camera shall move right and left AND up and down, then you need two different functions.
You need a function that controls the player, that moves him and that turns him only left and right.
And you need a function that controls the camera, that keeps the camera looking at the player, and that moves the camera right and left and up and down.
Is this right?
Second guess:
When I look at your drawing, I see that the center of your model isn't within the middle of the model. You should open your model in der Model Editor MED and look for the green so called "cross". You have to mark the whole model and move it until the green cross is in the middle of the model. And save the model. For security reasons: save the model with a different name and use this new model to work with it. So you still have the original model, when something is wrong with the change of the model.