This too shall pass (as my grandmother use to say). Nothing good goes away (the useful/friendly magical thinking) without being replaced by something and I think your "bedrock" of grown adult reality and life pains will grow a much more satisfactory way of dealing with it. Remember that "working through" means there's something "better" on the other side, if nothing else, no "tunnel" vision anymore. Never did like the cold, dark, spooky, drippy tunnels.