To Canada, from Canada...
Welcome.
You're going to find that the parent-to-parent advice around here is pretty good, but the resources available in Canada don't work the same way at all - it took me a while to really figure that out.
In order to help the rest of us help you, can you give us more information about your child? Who did the diagnosis (diagnosis)? when? has other testing been done since? for what? any other diagnosis? medications?
Is school affected by her behavior? if so, would they support you with an Ed psychiatric report? If not, you'll need to pursue Child and Youth Services or whatever they call the mental health department there. Sometimes you can self-refer, other places you need the family doctor to refer.
On top of the psychiatric report, you'll also want to talk about screening for learning disabilities - some can be subtle but really drag a kid down. While you're at it, have you checked hearing? what about auditory processing? (not the same thing... you can have normal hearing, but abnormally process what you hear - or you can have trouble filtering out background noise, or "tuning in" to the sound that needs your focus...) There can be sensory issues, which the psychiatric reports will NOT touch - we found it useful to pay for a private Occupational Therapist (OT) screening while we were waiting to get in to mental health.
Around here, ODD is not really treated as a diagnosis... even the tdocs and psychiatrists we deal with here consider it to be mostly a "secondary" diagnosis - that is, something else is going on, and because that pressure point isn't being dealt with (more likely, multiple points!), the kid can't cope, and it becomes a behavior issue... they can take it out on others (ODD, violence, etc.), or on themselves (depression, suicide, anxiety, etc.) and so on...
Given that the behavior is getting worse... and that the load at school is growing fairly fast by now... I'd be guessing that SOMETHING is going off the rails in the process of getting an education. Somehow, you still have to deal with the behavior, but you need to get to the bottom of it. In our experience, you have to really get "bad" before anyone takes you seriously. You sound like that's about where you're at now... so you have a big enough "squeek" in your "wheel" to start getting some action. It just won't come fast enough.
Ways to queue-jump in Canada... Yes, there are some.
- Occupational Therapist (OT) is almost impossible to get access to for school-aged kids, so you're totally welcome to pay for this to be done.
- Speech Language Pathologist (SLP) (speech-language pathologist) resources are usually in-school - but if the school won't back you for a Speech Language Pathologist (SLP) screening, then you will be at liberty to get one done privately - some public SLPs do private work on the side, with the permission of the "system" - it gives them exposure to cases outside their narrow assignments and keeps them more on their toes.
- Psychology/psychiatry - these resources are available privately if you have... the money to pay for them, or a generous extended health care plan - the plans don't usually cover on-going treatment, but will frequently cover assessments and other such short-term needs.
- If she is at immediate risk of causing harm to herself or to another, you can take her to (or depending on the urgency, involve emergency services to assist e.g. police, EMS) the nearest childrens' psychiatric ward.
- (shouldn't say this 'cause this is Canada, but...) If you have any connections in the health care system, this is the time to start calling... they can sometimes tell you WHO the best entry-point people are in the system, and/or may know a friend of a friend who works for (or who is) a key diagnostician... etc. Sometimes, it makes a difference. In my experience, sometimes the difference is just that someone else in the medical community supports your cause - even if it isn't their area.
For the record, therapeutic foster care is almost impossible to get here - unless through the juvenile courts and/or parent(s) in the legal-system maze. And what little is available, isn't necessarily "qualified" to deal with these kids - at least, what little we've been exposed to it. So you probably don't have that option either.
Not as familiar with 3rd-party residential programs - not so many of those here in Canada.
Hang in there. There will be answers. Meanwhile, find ways to look after yourself, and your relationship with husband. Sometimes sanity lies in the little things - but you do need to take time for yourself.
Others may have more ideas about immediate coping strategies... here's hoping they have something creative for you to try!
p.s. Start a "parent report" - see site resources. You're going to need all the documentation you can get, and this tells you the kinds of stuff to start collecting, and what to do with it all!