Waiting for diagnosis need help fast please

Good afternoon, I’m really struggling at the moment,

my daughter has just had an autism diagnosis and I am on the waiting list for the same. My daughter is really struggling and in year 11 at school, the school don’t have a clue how to handle neurodiverse children. I have come out of work to care for my child im the father.  I don’t have a clue how I will ever go back to work!!!

every so often maybe every couple of year everything gets too much and I have to take time away from work as I can’t handle everything that comes with it, I feel fine now I’m home but finanncially how will this ever work???? 
I don’t feel able anymore to even try and get another job with my daughters care needs and my mental health, o really have to keeep on top of myself and I do this, but how can I go back to work!!!