Banked turns are also a little tricky, and require simultaneous coordination of the throttle and cyclic.
The first phase of a banked turn is to apply left or right cyclic in the direction of the turn until the desired bank angle is reached.
The second phase of a banked turn is to simultaneously apply a small amount of back cyclic and rudder in the direction of the turn. The third phase is to straighten out after the turn. This requires using forward cyclic to maintain forward motion and centering the rudder stick.
Be careful when making a turn in windy conditions. This is the main cause of beginner crashes at this stage.
When you are flying into the wind, you will gain translational lift and the heli will rise, so you will decrease throttle. As you perform the turn and are flying with the wind, you will all of a sudden lose translational lift very abruptly and the heli will start to sink.
With a fixed pitch heli, the throttle changes are not immmediate because the main rotor needs to gain RPM. So, you will need to apply throttle early before you lose translational lift (about halfway through the turn), otherwise the heli will lose some altitude when finishing the turn.