Ich bin überglücklich, aber auch ein bisschen nervös.

Pronunciation: Ikh bin OO-ber-GLOOK-likh, AH-ber owkh eye-n BISS-khen NER-vöss.

Meaning: I am overjoyed, but also a bit nervous.

This phrase captures the complexity of mixed emotions, common when anticipating significant life events—a skill that shows emotional maturity in German conversation.