One of the first lessons a pilot learns (or should learn) is: To climb, increase throttle. To descend, reduce throttle. It's so obvious to an experienced pilot that we forget to spell it out to the newcomer.
This is exactly the way not to fly an aircraft if your taught by somebody who knows what they are talking about. In order to climb in my aircraft i`ll pull or move the control colum backwards and in order to descend i move the control colum forward.
I use the thrust levers to control and maintain the desired speed.
Are you one of those yanky doodle dandy crop dusting pilots who when they get below the glide on an ILS crank the Thrust levers forward to balloon back up onto the glide and when your speed drops you push the nose of the aircraft down to regain the correct speed.....absolute amatuer