Nobody is talking down to you, sorry if you feel that way- but like many others who posted here it frustrates me when someone asks a question that shows they NEED the help (like asking about "trunk chopping a juniper") and then they jump right in and do it twenty minutes later without waiting for help... What if someone had come in and said "absolutely not, do not trunk chop that tree right now"? Would you have still done it? Apparently so...?
I am far from perfect myself, but these are the kinds of mistakes I made when I started bonsai about a decade ago, and you would be better served to slow down a bit and get your trees healthy before you start whacking 80% of their foliage off. Believe me I am speaking as someone who killed some trees doing stuff just like this. Your tree may well survive, but I would not say that is guaranteed, especially after seeing the pictures. This was not a real healthy tree prior to the chop I'd say from looking at the foliage. It looks like an old decorative tree that was cut in a spiral pattern years ago then not cared for very well.... I hope it does survive and you get a real beautiful tree from it, but had you simply posted some pics before doing the chop, you would have gotten some of the great advice people here have tried to give you, BEFORE it was too late to take advantage of it. It takes about 10 seconds to chop a big branch or a trunk, but it takes about 20 years to grow one... When considering a drastic move like this that you are unsure of, it is best to wait a day or two ( or even a couple weeks) then do it when you are certain it is the right move.
Again, if you ask for advice, I do not consider it condescending to give it to you... Adair and some of the other experts around here could have probably guided you in a direction that would have enabled you to create something pretty nice from this tree in a relatively short amount of time. (Couple years maybe)... Now, as I said before, I just hope it survives. Good luck!
If you want some good advice, go to you tube and check out some of Ryan Neil's lectures on bonsai! He is great at explaining the basics of what drives the vitality in certain species... And giving simple, step by step instructions that make sense to everyone.
I am glad to learn you didn't spend much not his tree, and are just trying to learn- no better way to learn than practice!