Children's specialists galore

Ok, so my 9yr old daughter is being referred to a behavioral therapist because of Trichotillomania and poor social adjustment, my 6yr old son to a Neurologist and behavioral therapist for Tourette's and ADHD, and my 3yr old son just saw an Audiologist because he has a sever speech delay, they said his hearing is perfect. Who knows what's next? IDK....
My ADHD son is suspended from school today following a week long suspension from the bus. It's a wonder I'm not the one pulling all my hair out. 
I still haven't smoke since the 12th of Jan. I feel ok. I haven't talked to my ex since that last blowout, almost 3 weeks ago? And I'm actually ok with that. It helps me to let go of the hope that we will get back together, and that's what I need to do to be able to move on. 
Still haven't had any luck finding a job and I'm going crazy. I can't stand not working or having any money ever. And at the same time I'm thinking in my head, well if I had a job, what would I do with my son while he's suspended? I'd have to take the day off. And how many times is he going to be suspended before all his medical crap and IEP goes through?
I'm feeling very exhausted right now. I'm so tired of being the really strong single mother with the weight of the world on her shoulders that everybody sees. Why can't people see someone who needs support? It's always, wow, you're so strong, you never give up. it's never, hey, you got a lot going on, you need anything? 
What the hell is giving up anyway??? Is that even an option?? Why does me not doing the impossible make me strong??
I'm just so tired of being strong......