Depression and Anxiety

Hi, I was diagnosed with depression a few years ago. After a combination of CBT, medication, counselling and many life style changes I pulled myself out of the dark depths of it. My therapist believed it stemmed from severe anxiety and this conclusion made the most sense to me.
My anxiety is gradually getting worse again and with it negative thoughts, irritability, lethargy, aches and pains and occasional depressive thinking patterns. Obviously I'm worried I'm going back there and pretty scared.
I'd love to hear if anyone has any advice or thoughts from their own experiences as how to cope with this situation. Also if you are going through something similar and are facing the same problems.

Thank you