The general opinion about ailerons/elevators settings on Spitfires seems to be, leave ailerons on full and set the elevators six clicks from the right, all the other planes you'd need to play around with. Try flying one of the LA series as they are pretty forgiving.
Also try to be gentle with your initial movements, if you wanna pull up hard dont just pull straight back, start slowly then pull through, the stall warning is almost constant in dogfights but the plane will start to behave differently just before it stalls properly which should give you a second to try and get some airspeed back. Also try not to use the rudder too much, just a dab here and there.
It's trial and error at first but you can soon work out what works and what kills you. (in between all the respawning...

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