Why is my car overheating after replaced thermostat still runs hot coolant smell

What is your question?

Changed thermostat because car ran hot. Now car STILL runs hot and my heater no longer works! Also now while it's running a very strong coolant smell feels the car. Also my reservoir fills when car runs hot. There's no sign of leaks and haven't noticed any noises.

What makes this problem better or worse?

Longer it runs worse problem gets

How long has your 2003 Nissan Maxima had this problem?

Month