Hi Ozm8ey,
I found this for you: http://www.speechpathologyaustralia....s_a_SP_web.pdf

The link is to a Speech Pathology fact sheet for people living in Australia who are looking for help with their communication. Speech pathologists help people with their communication.

You might first mention it to your physician; and/or your mental health counselor, if you have one. Also, to be honest, anymore I look on the internet first for information (be careful, because not every website is reputable!) and Youtube for instruction videos--you might find one on pronunciation. And there is always practicing on your own; read aloud, recite poetry, or hold an imaginary conversation with someone and use a lot of sentences with 's' in the words.

Also keep in mind that the things that are huge to us, are often not so to others because other people are too busy worrying about themselves. Courage!