Provisional employee

I just found out that the test I needed to pass to keep my job - I failed. I wasn't notified yet by CS but was told by my bosses. I am devastated. I've been at this job for over 4 years (provisionally) and doing it well, it was a huge undertaking for me going to the public sector. Single mom of small kids as well and I don't even know where to start, I'm still reeling from this news.