I overcame all my mental health problems but anxiety. Anyone else?

Basically the title. I was diagnosed with cyclothemia and mixed anxiety–depressive disorder. I've managed to control my moods, have tried both CBT and DBT therapies. DBT has significantly helped to control my mood swings and depressive episodes. Honestly feel x5 times better and don't think I have depressive episodes anymore. But when it comes to anxiety, as soon as something unusual, scary or new happens, it's there and it's HORRIBLE. It seems like you forget on how to always live with these symptoms and then they suddenly hit you hard. I am now in the process of moving houses and renting my first flat ever (I'm 25) and I feel so stressed and anxious I can't sleep. How the f do you deal with anxiety? It doesn't wanna leave me for some reason.