DEPRESSION

Previously I've had extremely bad depression and anxiety and I got rid of all the things in my life that were dragging me down, including a toxic relationship.
I went to therapy, counciling and even saw a mental health expert. And I was doing so well!! I found a new and amazing partner who has stuck by my side! But recently I've been feeling the same sadness, frustration and anger I felt when I was really bad!
I'm scared to keeping back to my doctors. Theyve already given me Diazepan 2mg tablets to taken when I feel like I need them. But I don't know what else I can do???