Alas, my temporarily green thumb is threatening to change for the worse. I was recently gifted a number of tropical plants, bromeliads (which I have since learned I am allergic to--happen to anyone else?), praying plants (those plants where the leaves fold up in the dark), and some orchids. Any advice on how I keep these all alive? Especially the orchids. I am an infamous murderer of orchids.

Any help is greatly appreciated!