Change straight over.
I was nervous at first about feeding bones and balancing the meals properly, so I started with a commercially prepared raw diet to get started. As I got more confident, I started to buy whole raw meat and do it myself.
But prepared meals can be an easy way to start. Most people start with chicken for a couple of weeks.
If you do it yourself, go easy on the organ meat at first, and build up to the proper amount. It can cause loose poop until they get used to it.
If poops are too runny, feed more bone and less muscle meat. If they are dry and crumbly, feed more muscle meat, less bone.
After a couple of weeks if all goes well, you can introduce a new protein source, most people go to turkey next.
Welcome to the Raw Dog Ranch
Good info on that site, she is a member here.
You want to feed 50% muscle meat, 45% raw meaty bone, 5% organ meat (I've had people tell me 5% and some say 10%, so I go for something in between that range).
Or I've also seen 80% muscle meat, 10% bone (straight bone, not raw meaty bone), 10% organ meat.
The only thing is the organ meat percentage that people can't seem to agree on, I've found.
Vets are always trying to scare people away from raw, so I wouldn't let that scare you. My dog gulped down a big piece of duck neck without chewing it and she had no problems digesting it.