Hi @ruiponte1990 - some time back, perhaps before you created your QuickSight account, QS added ability to customize your identity region at time of signup (previously was only US East 1). Unfortunately you cannot change this after the fact. You would need to create a new account or unsub/resubscribe your account.
Can reference this article as you are signing up again (see Region Selection section):
Alternatively you could migrate your dashboard to match your identity region, but then data connectivity to your data source becomes a consideration.