Until you get a diagnosis, it may be best to go to your government allied health department (Here it's called Therapy ACT, I don't know what it would be in QLD). They usually run drop in clinics where you go and have to wait around to be seen, but it does get you in the system. You could also pay for a private one. Ours costs about $200 per 1 hour session, so can be pricey, but we luckily don't have to pay it because we have a diagnosis. Once you have a diagnosis from a pead. or allied health assessment team you become eligible for the early intervention funding, where you can access privates ones for free.