More data/information is needed. Obviously the engine is running HOT, why? Check coolant and timing. Check fanbelt for slippage, what is the condition of the water pump, is the thermostat stuck? I don't know the answer but even the very good experts on this forum will need more information before making suggested fixes. I can say that when I get like this it is a good idea to just close the garage door and go to bed early and maybe approach the problem fresh after a rest.

Don Shillady
Retired Scientist/teen rodder