I would suspect a lack of fuel pressure, replace fuel filter, check fuel pump.
clutch
The pedal in the car you push to go faster is the accelerator pedal.
ANY car will stall on a proper hill if you try to bring the clutch up without any revs generated from the gas pedal.
Bad PCV Valve.- Your car would vibrate a lot and keep stalling. if you try to floor the pedal in gear, the car will move but, vibration is bad and you'll stall again.
if you have a cracked distributor cap then water would get inside it and make your car stall.
The clutch pedal.
you have to push clutch pedal in/then push the car let pedal out should start.
because if you stop immediately then the car will stall.
push the gas pedal really hard
Push the brake pedal? What, exactly, are you asking??
youre lifting the clutch up to quick
Sounds like you might have unmeasured air entering your engine. This would cause the air fuel ratio to be incorrect. Look for a hole in your intake plenum (the tube that goes from where your air filter is to the engine) or perhaps a vacuum leak somewhere