The best suggestion may be to start over, unfortunately, with lessons learned. When a juniper gets to this stage it has been dead a while. Sorry for the bad news.

ez

Dang thanks anyways. I've read putting it in a sand mixture might help or do you thinks it's too late?

Too late for this tree, but not for the next one :). Yes you probably watered too often and shouldn't have kept it inside. But there's a lot more to learn so do some real research (don't just call up one site that sells them please - you won't get useful help that way).