ATOS medical results possible outcomes?

I'm totally unsure where to put this but since the post arrived earlier I've been doing my head in about and panicking quite a bit

I, like many others had a medical assessment before Christmas and was waiting to hear back, today I got the brown envelope which said I am in the work related activity group

I've looked up what this is and im fine with it but I was bracing myself for 0 points due to my mental health problems and hearing how people don't get points for it. My letter today had no indication of what my "SCORE" was so I'm unsure if this is good or bad?

What were the possible outcomes from the DWP? Like if I did get zero would I have not been on this? Bit confused tbh :(