1995 Nissan Silvia Serious help needed

Engine Cooling problem
1995 Nissan Silvia 4 cyl Two Wheel Drive Manual 163 km miles

I drive a 1995 Nissan Silvia. It has overheated on me and leaked coolant through the gasket of the water pump. After ordering and installing a brand new water pump, thermostat, and temperature sensor, the enging still continues to overheat, while idling, and driving. There are no kinks in any coolant hoses, and the compression test has ruled out there being a bad head or a blown head gasket. I have no clue about what is going on here. Also, there is a strange noise that I hear that I believe has something to do with the transmission, as it changes whenever I push the clutch in. Also, the power steering fluid is boiling while the engine is running at idle. I have no clue and am ripping my hair out here! Please offer me any and every kind of solution that is possible. I have money and am willing to do anything to fix this!