S.B.
My sister does this. It's a tough business and you do not make much money for quite awhile. You get paid by the word (usually), and it takes a very long time to comprehend the shorthand and terminology that doctors use, regardless of schooling. If you really want to get into the field, you need to find someone who is successful in it and is looking to bring on additional people. Then let her train you (well you have to go to the school, too), and then you'll have some doctors to transcribe for.
It is hard to get started & find doctors. Which is why to be successful you need that mentor. My sister met hers through church (and they live in a different state, otherwise I'd connect you). The woman she works for/with makes over $40K a year doing it, but she doesn't have kids and works day and night. My sister started doing it so she could stay home with her children, but has realized over the past 2 years that it really is not a job for a SAHM, as you can only do the job when kids are asleep or your husband is home, etc. Her kids started school this year, so she finally has time to devote to it & is starting to make some money. I'm not sure how much she is making now - I think she brings in around $1,000 a month.
I hope that helped a little...if you still have a lot of questions, I'll email my sister for you. Just let me know.
Good luck!