If you are using G2 you can set the landing difficulty. As you improve increase the difficulty.
Options>>>Miscellaneous>>>then slide the landing difficulty bar from Realistic to Easy or a point between.
As to how to land - make a slow, low approach keeping the wings level using the ailerons. When you get to the end of the runway pull the throttle back to idle and as the plane gets near the ground gently pull back on the elevator. As the plane slows it will continue to descend. How slow you can get before the plane stalls will depend on what plane you are flying. The slower the plane gets the more you will have to pull back on the elevator to control the descent.
Keep practicing. After a few hundred times it will get easy.
Eric