My truck runs great the first 30 minutes of me driving it then after shuts off.

Even though the engine will not turn over just makes a clicking noise

Well if you had posted it will not CRANK instead of will not START , i may have known the engine isn't turning over! Big difference,, however at that time is when a mechanic needs to test it to see if its the starter or a circuit problem.... guessing does no good!

Very true my bad, i changed the starter out on it so its not that.