Tips or tricks for autistic kids?

I’m a 28 year old single mother to 3 children I get no support from my ex partner and that’s absolutely fine. My daughter is 10 years old and has autism we are going through the process of getting diagnosed but I have known for the last 8 years something isn’t right. I don’t have the best of support networks it’s very hit and miss and I prefer to just do it on my own due to the support not being a constant thing anyway. We have good days and bad days and up until recently I have managed to have some form of control over the bad days. But lately it’s gotten out of hand to the point neighbours have contacted local authorities saying they are concerned I am hurting my children but it’s just my daughter having breakdowns I have had to start recording these breakdowns and outbursts just to protect her my other two children and myself and it’s heartbreaking! I don’t really know what the point of this post is maybe just to have a vent but any tips or tricks will be greatly appreciated.