Wow, YES! I absolutely use essential oils, along with calming music and anything and everything I can think of to create a calmer mind for both of us. I've bought a couple of books which were recommended by a friend who is super knowledgeable about using these oils along with several diffusers to use around the house. Keep in mind, essential oils are versatile, you can use them different ways from diffusing, adding a few drops to your bath, create a massage oil - with a carrier oil, and you can even use "some" in cooking. I've also read that you can put a drop of lavender on the pillowcase to help with sleep.
Do a little research before you start using, ask lots of questions. If you have pets, research if the oil you're thinking of using is pet friendly. Sidenote - some oils are used with pets, even horses. I loaned my veterinarian a diffuser and a handful of oils once upon a time. She loved them.
Also, make sure you buy a good quality oil. Never buy any oils in clear glass.
I'm diffusing Lemon Verbena today, it's a multi-purpose oil. Under medicinal uses lists: Emotional balance, nervousness, relaxation, sedative, stress and a whole bunch of other uses. I use Lavender a lot also and there's one called Peace and Calming that is my go to when I need the big guns, so to speak.
I hope this helps.
Check out these two books: "Essential Oils Natural Remedies" by Althea Press (The Complete A-Z Reference of Essential Oils for Health and Healing) and "The Complete Book of Essential Oils and Aromatherapy" by Valerie Ann Worwood I've got other books, but these are my personal favorites. BTW - you can often pick up these books used.