Pinching’ describes a type of pruning that encourages plants to branch out along the stem to become fuller and more bushy. When you pinch out a plant, you remove the top of the main stem, forcing the plant to grow two new stems from the leaf nodes below the pinch.
Subsequently, you can try grafting but you need some healthy plant to take from if your going for aesthetics.
Let it heal though before doing anything. I feel thing thing needs leaves for energy