* Ron's internal conflicts? He's insecure about his family's poverty, struggles to live up to his brothers' expectations, and is jealous of Harry's fame. He also battles his own fear and doubt throughout the story.
* Ron's conflict with Harry? They have their disagreements, particularly when Ron feels left out or overshadowed by Harry's fame and magical abilities.
* Ron's conflict with other characters? He has some issues with Draco Malfoy, and his rivalry with Neville Longbottom is a recurring theme. He also clashes with Snape due to his prejudice against the Weasleys.
Please clarify your question so I can give you a more specific answer.