my god, I can not belive the level of EU pilots here .you should really go back to basic. who taught you to fly a plane?
balanced turn is when the ball is centered...if you Xcontrol you are not in a balanced turn.
next question for you: difference between forward slip and slip?
slip is when you X control but flight straight.
forward slip is when you X control with excess of bank(you skid when excess of rudder), and you drift aways from your track.(used usually to lose altitude)
what's the right technique to enter a forward slip?
first bank the plane over 30 degree
second; apply rudder in opposite direction
how to get out?:
release pressure on rudder
level off your wing
if you can not so this, I suggest you to go with a flight instructor, so he can show you how to do a f. slip.