Mental health

So I’m pretty new into this, my kid was diagnosed a little before 2.5 a few months ago and I have no idea how to explain how I’m feeling. It’s like I’m experiencing all emotions at once, all the time. I can’t sleep because my mind doesn’t stop, I can’t stop thinking and researching until I fall asleep on the couch at 3-4 am. I’m so sensitive to what people say, whether it’s “autistic jokes” or ignorant comments. Not that it happens a lot but when it does I fill up with anger. I have such a short fuse a lot of the time. My anxiety has gotten so bad where I hate leaving the house, especially alone or just with me and my kid. My son is amazing but every little thing he does or doesn’t do sends me into a spiral of “is this typical or is it a regression? Am I doing all the things I should? What did I do to make things hard for him?” And it keeps on going and going. Through this whole journey and through my research it seems like I’m neurodivergent and had no idea, but it would explain a lot. I’m just so overwhelmed and I’m not even in the thick of it yet. Idk what to do to make myself calm down. My trust in people is 0 and I’ve unintentionally isolated myself. Idk what to do or if what I’m feeling is normal