Best is to have someone come over and assist.

The flexing will cause premature hinge failure if not cured. It might also cause breaking of the horizontal stabilizer and the elevator

The horizontal stabilizer is the fixed rear "wing" and the elevator is the moving surface attached to it.)

Rudder is the vertical moving control surface. Fin or vertical stabilizer is the non-moving part of the "tail."

Ailerons are the moveable surfaces attached to the main wing, giving bank control, moving in opposite directions from each other.

Without seeing the damage and attempted repair... its very hard to advise what to do to get it right. ANY binding is bad.

CA type hinges are difficult to remove if properly glued in. You can sometimes slide an Ex-acto knife along the top and bottom of the hinge, cutting it ou of the slot, but its usually better to just slot beside the bad hinge, and forget putting the new one in the same spot. I highly recommend a hinge slotting kit or the Great Planes hinge slotting power tool.