Dying Phal, what is this?

[Wrebbitrocks]

Hi, i got this orchid about a month ago. after about a week the bottom most of its 4 leaves yellowed over a couple of days and i took it off. the edges on the next leaf were a little yellow but i ignored it. two weeks later it too began to yellow and after close inspection i saw that the base was turning BLACK. i quickly soaked the area in peroxide and packed it with cinnamon. the 3rd leaf inevitably fell off but nothing else seemed to happen. then yesterday overnight the next leaf began turning yellow from the center up and the spike turned half yellow also some of the flowers which were fine the day before withered. i think its on its way out. when i unpotted it, i was amazed by what i saw. exactly HALF of the root system was rotten on one side and amazingly healthy on the other. idk whats going on. also on the bad roots there is small clusters of turqoise blue fuzzy patches with white edges. im assuming this is mold. what should i do about this if its even worth it. i was thinking not really waste any effort trying to save it and just getting a new one.