Sarah, as a Doula you don't make any decisions! You support the couple in making their own decisions, although you can help them to find the information to make these decisions.
The job of a Doula is 'to be' not 'to do'.
I did my training last year, my trainer asks you to do a workshop, read from the required reading list, complete a written piece of work about what being a Doula means to you, and to do all this over a period of about 6 months. Not sure how other courses are led.
So I have completed a course but we continue to learn every day of our lives, and gain experience. I am still considered a trainee cos I've not had my four assessed births but my trainer prefers that we think of ourselves as "New Doulas" which means that we have nt had much experience but does not imply the sort of negativity that "trainee" has.
I also post rather a lot on various forums and have learned HEAPS from these. In fact, being a Virtual Doula was just a progression that happened because of the time I spent online, soaking up information.
A lady I know from local NCT asked me to go to local MSLC, but if you don't know anyone already involved I'm sure that if you contact your local one they would be only to willing to have more lay members. Look it up now!
Stay strong