Upvote:3
You are creating a problem based on an incorrect understanding of the visa rules. You do not mention the validity of your Polish visa, but everything seems fine.
The general rule is, that days you spend in Poland during the validity of your Polish national visa, do not count for the 90 days you are allowed to spend (as a Brazilian without further visa) in other Schengen countries.
So for a simple example: If your Polish visa is valid until Feb 18th and you spend the 90 days preceding Feb 18th in Poland, you can immediately following the expiration of your visa spend an additional 90 days in any Schengen country. If you during the last 90 days before expiration of your Polish visa spend any time in other Schengen countries, these days will be deducted from the time you are allowed to spend after the expiration of the visa.