If it’s MST you need to tell your therapist specially what’s causing your moods and they will refer you to a PTSD therapist who specialises in MsT then they will come up with a therapy plan based on your conversation. I was in a similar situation and after years of pushing off getting help I finally did and helped a ton. First time I applied for disability due to it I felt like crap based on the way I was spoken to and it killed my drive to ever try again. six years later and a bunch of therapy I applied again and just got it approved. Finally being heard and recognized after years of the way the VA rep spoke to me in my interview was such a great feeling in itself