Hi PhoenixBlue.
the best is to get a joystick! and set trims(i use my logitech momo racing wheel for rudder trim, pedals for rudder, mouse wheel for power) your wings will create lift and with the rudder trim you can stay level. trims were introduced to make the pilot work less stressfull
also check your realism settings! realistic landings, take off and landing must be checked, then you'll take of the runway.
if you need anything more please let us know, the game is very realistic and is really impossible to play it with out the right equipment