Hi Mar, I would agree with the other comments. but I also want to mention that TICA and CFA both have mentorship programs, and that may be one option you could choose.
Ideally, after deciding on a breed you should spend at least a year or two showing an alter (spayed/ neutered cat) , and being involved in a breed club , get to know people in your breed , get to know health issues, breed standard etc.
With the contacts you make that way you may then find a really good breeder to entrust you with your first breeding queen.
There are also some books you could get, such as The Cat Breeders Handbook which is a compendium of articles from many different breeders, vets, cat judges etc.
or there is a classic textbook available free online, Dr Pedersens Feline Husbandry book is on the website of the UC Davis vet school.
Another book that I found had some useful info is the Practical Guide : Cat Breeding, published by Royal Canin. ( I won it at a cat show and it turned out to have some very useful info.)
Of course you are right to ask about mentors because no book will take the place of knowledgeable and experienced mentors in your breed.