Sprouts and Whole Foods carry essential oils, and ebay and amazon also have them. Bergamot isn't the only EO good for anxiety. Lavender is excellent for it also. Any scent that you find relaxing is also good.
Be VERY careful with scents at schools. Here staff is not allowed to wear any strong scent, meaning if others can smell it you have to go and take it off. Why? It was causing a huge increase in asthma, allergy and migraine issues in the schools and esp in the offices.
Tension Tamer Tea is excellent. I have had many people suggest Tazo's Calm Tea also. Personally, it tastes like weeds to me, but many people like it. While Starbucks sells Tazo tea by the cup and box, you can also find it at FAR better prices at the grocery store usually.
Earl Grey has bergamot in it. I have found that the best brands, with a good bergamot flavor and not a rather insipid one are made by Stash and Tazo. Tazo is a lot more expensive than Stash around here. I don't really like the Bigalow brand of earl grey as it mostly tastes like Lipton tea that someone left in a container with a couple of bags of Stash's Earl Grey next to it. Panera sells that brand that comes in the round cans and is expensive as all get out. Their earl grey is okay, but Stash and Tazo are better and even Tazo costs less than those round cans do.
What time is your lunch and what do you do at lunch? Do you eat a healthy lunch? Can you take a short walk or do a short meditation during lunch to prepare you for the afternoon? You can find guided meditations online and many can help you with anxiety. A walk or short workout may help. It will release excess energy, help build your stamina, and may release endorphins that will help you avoid the anxiety.
How do you sleep? If you don't get a decent night's sleep, you will be far more prone to anxiety and panic attacks. You may need to talk to your doctor if you don't sleep well. A sleep study might be helpful too. Do you take some time each evening to do something to recharge your batteries, to relax yourself? How can you carve out 30 min to do something just for you? My family knows if I don't have that time alone, I am not fit to be lived with after a few days. My husband is the same way, and we have always worked to give each other that time. We also taught our kids to respect that time. We both figured that would cut down on the risk of child abuse, and no, I am far from joking. husband and I both have tempers, and anxiety, and if we don't manage them we can lash out. So by making sure we have what we need, we are better and safer parents and people.
What do you really know about anxiety and how to cope with it? I know you have seen docs about it, but have you researched it on your own? It is really important to arm yourself with the right tools to handle any health issue, and you cannot find those tools without doing some research. The Anxiety and Phobia Workbook by Edmund J Bourne is incredibly helpful. It will teach you about anxiety and how to manage it. I found it very helpful for myself, for living with my kids and husband, and for coping with my mother especially.
A lot of us here really belief in Cognitive Behavior Therapy. It can be incredibly helpful when dealing with a wide array of problems, esp anxiety. The Anxiety and Worry Workbook: The Cognitive Behavioral Solution by David A Clark and Aaron T Beck is also excellent. It does what it says - uses CBT to teach you to handle your anxiety. I think it might be of great help to you.
Both books are quite affordable on amazon right now, and your local bookstore might also have them. Essential oils and teas etc.. are short term ways to help get through the fire, for long term solutions, please do some reading and the exercises recommended in the books or by your doctors. There really can be life with very few panic attacks and bouts of serious anxiety, but you have to work to build that life. These books really can help iwth that.