I'm glad you like it!
It seems like a single axis is assigned to multiple actions. In the calibration menu, do you see the wheel bar moving when you press the brake or clutch?
Does the wheel have force feedback in-game? If not, the game might not recognise your wheel as a ffb-wheel.
You can try rebinding the axes. When rebinding the steering axis, instead of turning right, try turning left and check if the axis name changes in the menu.
For the pedals, instead of pressing them during the rebinding process, try this: press the pedal first, then press rebind, and finally release the pedal.
In the calibration menu, each axis bar should move independently and should not interfere. Let me know if this helps!