@purplelily My DS is the same age and we just had his ST formal assessment today. We had a play assessment a fortnight ago. I'm doing a care plan through the GP. The first 2 sessions are expensive $250 and $140. You get 5 sessions per year, 2 of these are used up with the assessments so he will have 3 sessions left, but because he is Aboriginal we can get an extra 5 sessions so that kind of makes the expense of the assessments worth it. DS's assessment came back at severe expressive language delay (2%) so I know where you're coming from. He will be having fortnightly sessions.
These are most important things I have learnt in this journey
.follow your child's lead, don't force your play style on him copy what he does instead and describe what you are doing
. wait for him to take his turn - this can be really hard. It doesn't have to be a word it can be a gesture. If he uses a gesture give him a word. If he uses 1 word give him 2.
. learn some simple signs from Auslan and teach them to him. Things like eat, drink, finished and more are great starting ones. Just use them every time you say them and he will start using them too. It does help
As for daycare my DS started in January and goes 2 days a week. It hasn't helped a great deal with his speech but has really improved his attention span and also the way he interacts with others. Feel free to PM me if you'd like to talk more with someone in the same boat.