Car died all of a sudden started back up later died again

All of the sudden it died, but started back up. Then later it died like key being turned off not like starving for gas. And would not start, hour later it started. Only does this after engine is at regular running temperature. Then today the battery light started flashing while dying pulled over and killed ignition. But battery light kept flashing and speedometer kept jumping. Under the hood I heard like a relay clicking but at a very fast pace probably five times a second. Would not start for thirty seconds. Started up and tried to get it home. Did it twice more before getting home. Got it home killed it and started. Right back up and idled fine. Killed it and tried to start it four hours later and wont start. Still wont start. When it would die I would turn on key and fuel pump would not come on, then wait a while turn on key and fuel pump would come on and car would start. Now fuel pump not coming on and no fire at end of plug wire. Last week I noticed I have not heard the fan coming on, so I ran a wire from radio fuse under hood to the fan motor wire and then ground wire to bolt on fire wall so fan comes on when key is on. And unplugged wire going to block.