I am sorry to hear about your current challenges. Chrysocolla facilitates peace and clear communication. It would be a good choice to have on you or near you when interacting with your roommate. Amethyst can help you achieve restful sleep amidst difficult circumstances.
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I must share the standard disclaimer that I am not a doctor and cannot give out medical advice. Crystals for healing should be used as a complement to other therapies and not as a replacement for regular medical care. The information offered here is based on a combination of my own personal experiences and that of others on using crystals for healing. My hope is that you will let your own intuition guide your path in working with crystals as well.