2001 f150 5.4 last night it ran well got me home today Saturday the 6 won't start it cranks but that's it I'm getting frustrated don't know wat to do

 

Since you haven't really told us what is happening, it is going to be rough to help diagnose. Do you hear the fuel pump when you turn the key on? If not, check the fuel pump relay and swap with the one next to it in the box. If that doesn't work, and you still don't hear the pump buzz when the key is turned to on, then you may need a fuel pump, or some gas. You didn't get your tank siphoned overnight did you? We've had a rash up here lately. Some are even putting holes in the tanks and draining them that way. Expensive to repair that way.

You don't post where you are, so I have no idea if it was cold where you are, or other things that might be helpful. Tell us what you have checked so far, what your dash shows, etc.