Pondering doula-ing

I'm seriously considering doula training and becoming a doula/birth assistant. The training isn't until January and I need to get my deposit in by November, so I have some time to think about it. To be a doula, I feel like most that I've met are very quiet, relaxed, zen. that isn't really me. I am however, very forceful, a "bulldog" as one friend put it, when it comes to defending or needing to stand up for something (as so often doula's do during the labor when the mother can't speak to the doctor herself). I also understand and know a lot of medical jargon and am not intimidated by doctors. I went to school with a lot of them - they are no smarter than me, that's for sure. just more specialized. I am also so passionate about healthy births and birthing for the mother and baby, not for the doctor, which is what makes me want to do this. I love being able to support someone, in whatever decision they choose. I feel like doulas need to be there not only for the easy, natural births, or home births, but mothers going through labor who end up with c-sections, who have complicated pregnancies, those who probably need the support even more so. Which is why I'm considering "selling myself" (for lack of a better term) as one who can help with births where genetic disorders and congenital birth defects play a role. Although these women are the high risk category, they too may want as natural an experience as they can have, and they need more support. With my background in genetics I definitely feel i could help. so....thoughts?