Why did you decide on Brazil to try your luck? Do you have any connection with the country? If not, you are looking at around 5-7 years before you can become a citizen, assuming you can get a residence visa in the first place. To get a residence visa you need a job. Obviously you can't fly at this point so what other employment possibilities can you offer? You have to live here for those 5-7 years, without being able to fly commercially, so you need to support yourself and pay for your flying too.
Converting licences just takes time and patience, finding a job is going to be a lot harder. There is no shortage of helicopter pilots here, and the salary for most of them is pitiful. Maybe 25% of helicopter pilots earn a living wage here, the rest are basically paying to fly. In fact if you do find a job during the waiting period it will probably pay more than flying helicopters.
The short answer is stay where you are and work there.