My car had almost overheated again and it turned out that there was too much air in the radiator, so after removing the bleeder valve on top of the radiator (above the lower radiator hose) and opening up the coolant tank cap, then closing the bleeder valve (and breaking pieces of plastic in the process), then starting the car up, all of the air got released with the cap off of the coolant tank and the heater set to full max. It goes a bit above the 1/2 marker, so that's normal now instead of creeping up to the 3/4 marker like it did several months ago. I also had to replace the coolant tank and swap the coolant level sensors since the sensor in the new tank was broken and said that my coolant was "low" at the full hot line and the old tank had a hairline crack at the return line housing on the tank. Hoses are still good, but I'll be doing a swap in the future for preventative maintenance.
Before, I had a crimped hose that was causing my car to overheat the second time and luckily, only overheated when I drove my car around after replacing that broken thermostat on my way back to my house (about 1/4 mile from the house) and before that, the temperature gauge was erratic (jumped up and down) and got the cooling system flushed out since it was old and weak. Fortunately, my car has the overtemperature protection on both the transmission and engine (shuts off certain amount of fuel injectors and lowers the gear ratio to prevent the transmission and engine from crapping out. No head gasket issues or blown seals.
Currently, my fuel gauge is broken (sticks at the full marker and the sensor is broken) and hasn't worked in 3 years, ABS is also worn out (ABS module and wheel hub are bad), foot brake/parking brake doesn't work (needs adjusting after I replaced the rotors and pads a year ago), broke a stud on the wheel hub (never use a hammer or sledge hammer close to a stud, which'll cause the threads to bunch together), and the exhaust system is loud again and will be repaired once I get home along with the fuel gauge.
Systems from C64 to FX-6300.