I'm not super sure but do you have insurance? Some treatment centers also offer a payment plan, maybe you can inquire? I know that they can be steep.
But I do think that your quality of life will improve and that's no price tag to being alive. Perhaps someone can help you shop around.
I googled it and it looks like prices can range from $10k to $70k, so $30k is in that ballpark.
As expensive as it sounds.. I really do believe YOUR LIFE and HAPPINESS are worth it!!