When trying to get my radios to work I tried many tutorials. The one that helped the most is Robin2's simple rf24 tutorial. If you, carefully, read and follow that tutorial you stand a real good chance of getting the radios to communicate.
If you want example code to read, send and receive 2 analog (potentiometer) joysticks (4 axis), I have working code that I will share. But you need to get the radios to work with the tutorial code first.