The 180 can be found under BS FAQ #11. Here is a direct link:
use the above link. It will be very helpful. 180 is hard... of so very hard in circumstances like this. But you can do it and use SI to help you through it.
I found the FAQ section to be very helpful when I first joined, too.
Let us know if you have any other questions, or if there is any other way we can support you here.