Hey Tegan

I'm a Speech Pathologist but I work with older kids than Lily.

Lily's speech might be worthwhile getting checked out...especially if she is tantruming alot. Also...like has already been mentioned...wait lists for publics clinics can be long (in WA they can be 6-12 months) so it might be worthwhile getting a referral and at least having her name down...if the appointment comes up and her speech has progressed, there's no problems taking her name off the list...

Has she had her ears/hearing checked? Might be worthwhile getting them looked at...just in case she has hearing problems/ear infections that are getting in the road...

There's some good books out there too...to help develop speech and language...you should be able to access them from your local library...

Wishing you all the best!