My advice is to pitch it, go to the store and buy yourself a new one. Phals are available everywhere and they are surely not expensive. Buy one in bud with perhaps a couple of blossoms open so you choose what color you are buying.
Have Fun!!!
Looking at your picture, I would think the pot is perhaps a bit large/ too much bark?
Anyway, I wouldn't beat myself up over this, sometimes you have an Orchid which just doesn't grow for you, no matter how hard you try.
