Should i go? The formation takes 10 month....i have no experience. With this formation and a lot of work by myself....it´s possible get a job in his world?
I'd recommend you get a copy of the book "What Color Is Your Parachute?" that includes many chapters on making a lateral career change. (That is, making a career change from one industry to another industry or from one role to another role.) The book has been a best-seller for decades and if you don't want to buy it, your local library is certain to have some copies.
The extremely simplified version of something the book covers in multiple chapters is that you have two transitions to make. One transition from your current role to a different role, and you have another transition from one industry to another industry.
Sometimes the transition requires education or training. Sometimes that can be done through individual study, other times it is better done going to training seminars, workshops, or returning to school. That is unique to the individual and how they best gain what they need.
It is easier, but takes more time, to do the transitions sequentially. You might transition to a game industry doing your current role, then transition to the other role. Or you might transition to the role while remaining in your current field, then transition to the game industry.
It is also possible to make both transitions at once. I know someone who spent 30 years of her career as a nurse, then took a six-month course and got a job as a game artist. (In addition to her role as an artist and now as a project manager, people still talk to her whenever they have a medical concern, which I think is fun.)