"Sometimes I want to stay, sometimes I want to leave."
Translation:Bazen kalmak istiyorum bazen gitmek.
'Bırakmak' also means 'to leave' but it is transitive. So it is used in sentences in accordance with that fact. For example:
Evden ayrıldı: He left home. (ablative)
Telefonumu evde bırakmışım: I left my phone at house. (accusative)
Beni yalnız bırak: Leave me alone. (accusative)
Benden ayrılamazsın: You can't leave me. (ablative)