How am I gonna be an optimist about this?

“How am I gonna be an optimist about this?” It is the sound of a song and the translation is “Come potrò essere ottimista riguardo a questo?” But can the future “is going to” also mean “can”? Thank you for the answer. Giovanna

Yes. Even if “going to” is a future, the meaning is the same as “can.” So you could say that the phrase means “How can I be an optimist about this?”