Unsuccessful Messing

I was trying to do to this plant what I had seen done to one at a Doctor's office but I failed.  It may have worked if we didn't move at a critical point.  I was trying to get two tops to come from one stem.

I got one to sprout some new growth, but it wasn't a strong plant at the moment I tried this.  I still have two like it so at some point I might try it again.   However I will wait until they are ready for it.

My problem with them right now is the stems are not thick enough to support the tops. And my twisting them together has not helped them at all.   I think it is to late to try and undo it so I have to figure out how to help without killing the rest of them.