Ok first, i play with a keyboard and not a joystick. Whenever i want to go up (don't know the exact name for going up) i hold down s and i start to go up but a second or two later i see myself going down and in first person i see the wheel thing pushing forward which is down. is this a glitch or something and how do i fix it?
You've stalled the wing. If you pull the control column (or yoke) all the way back and hold it there, the wing will reach an angle of attack greater than it can fly at and the nose will drop. Keyboard controls do not allow small control inputs, so if you hold the "up elevator" control you're going to see exactly what you describe. You need to tap at the control to "simulate" partial control inputs, not hold it down.