You don't need training just creativity, you must obviously know how to write and use punctuality.
Answering "How much training do you need to be a song writer?"
It never ends.
To be a true writer you can choose to get degrees and go to college and all of that or you can be an ordinary person who actually doesn't have a college education. It is easier to be a writer with a lot of education, but it's nor really required. Pretty much anyone can write a book, but not everyone can write a good book.
more than you can afford
You need to be an idiot to become a builder
You need at least 2 years of training on top of the 4 years of education
What training do I need to become an interior designer?
"A+" training is all you need to become a technician "You will need to be a whiz on computers. You also need to be a whiz with tools.
you need at least 8 years of training to become certified
Some actresses get the job from childhood. This means that you do not actually need formal training to become an actress.
you need to know how to rhyme....
You need a great deal of formal training to become a doctor. You need to train for many years in college and do many clinicals.