How does Odysseus convince Telemachus that they can win?

Odysseus convinces Telemachus that they can win by instilling confidence in him through his own experience and wisdom. He emphasizes their shared lineage and strength, reminding Telemachus of their rightful place as rulers and warriors. Odysseus also outlines a strategic plan to reclaim their home and defeat the suitors, showcasing his cunning and resourcefulness. This blend of reassurance and tactical insight inspires Telemachus to believe in their victory.