How hard is it to replace the thermostat in a 2002 Mazda Protege?

My car keeps overheating and the coolant is full, I think I need a new thermostat? I know they are cheap, but how much does it cost to pay a shop to replace one?How hard is it to replace the thermostat in a 2002 Mazda Protege?super easy to fix, and i mean EASY



just look the lower hose going to the engine, release 2 10mm bolts and the thermostat is there, just remove the old thermostat and place the new one with a new oring gasket and screw back



very simple thing to do