You switched countries the first time when you were 3. Stayed in one place 14 and a half years, then switched from living on one continent and visiting another, to just staying on one (other) continent, and flip-flopping between two countries.
The Gross Total: 3 continents; 4 countries (lived), 14 countries (visited); 3 languages, 5 schools; 10 places of living (house, home, apartment - pick a word you like.)