Sorry you are going through a bad patch right now. I’ve found habit tracking helpful to understand what triggers anxiety and what behaviours help (for me that includes things like yoga, reading, minimising caffiene and keeping the house tidy) even little things can make a difference if you do them often. I think sometimes it’s more helpful to focus on things leading up to panic attacks than treating the attack itself and then that way you can hopefully manage the anxiety before it gets too bad.
When it does get bad I like listening to episodes of the Anxiety Coaches podcast, or a guided meditation on YouTube. There are also mindfulness type exercises you can do when you’re having a panic attack or feel one coming on. All the best x