Hard to tell from your images what the plant is potted up in. Oddly enough, overly wet substrate is more harmfull to the plant than most people realize. So keep it on the dry side (Not dust dry of course).
yeah im not a water happy person having raised orchid for most my plant history. since i had to plant it in a hurry with what i had, i did the best i could. it is in a very lightweight mixture of perlite and humus, hopefully that will the good fast draining mix it needs. im considering moving it a few feet under a roof overhang and taking over the watering myself, now that we are going into our wet season, so far the rains have been on and off enough that it has been getting to dry out often. it also has a pretty dense crown which has been directing lots of th rain it down get, to the branch ends which hand past the pot edge.
The juniper will start showing recovery of death when you get very dry conditions or in spring. I fyou start to get good growth in spring (So extending branches, not just green tips) it is on the road to recovery.
guess i do my best and just wait a few months. i want this tree to survive so badly, i just stare at its trunk on a near daily basis and give it a pep talk.