Erin Sharaf, Former professor at Northeastern University and now educator at Mindfulness + Magic
There are many different resources out there to help you relax. If you put terms like "guided imagery", "guided meditation" or "mindfulness" into a search engine, YouTube or iTunes, you will find many quality, free options. I would invite you to play and explore different ones until you find a voice or particular practice that resonates with you. I have several different practices that I like to listen to, depending on my mood, what is going on for me on any particular day and how much time I have. If we actually make relaxation a regular practice, it can strengthen our ability to be calm, even in difficult situations. Best of luck to you.