you can change the example to:
Jonas said,”I’m sorry I wasted so much time with my questions. My father had to release a new born child this morning and I was curious, I think he already did this morning.” I wish they wouldn’t do that, I said to myself.

put yourself in the place of the Giver,then try to think as if you are telling your story to somebody else,like when you are having a conversation with your friend.when you talk,you need to add quotations,but don’t need to write “I said” when there is a continuous dialogue between the Giver and Jonas,it is necessary if the Giver spoke first though.

example:
1)The Giver sighed. “You’re right,” he said. “But then everyone would be burdened and pained. They don’t want that. And that’s the real reason The Receiver is so vital to them, and so honored. They selected me-and you-to lift that burden from themselves.”
>I sighed and said,“You’re right,but then everyone would be burdened and pained. They don’t want that. And that’s the real reason The Receiver is so vital to them, and so honored. They selected me-and you-to lift that burden from themselves.”

2)The Giver was still deep in thought. After a moment, he said, “If you floated off in the river, I suppose I could help the whole community the way I’ve helped you. It’s an interesting concept….”
>After thinking for a moment,I finally replied,“If you floated off in the river, I suppose I could help the whole community the way I’ve helped you. It’s an interesting concept….”

OR
I felt solemn and whispered, “I wish they wouldn’t do that.”

If you (giver) talk outloud there are quotes. If it’s a thought.. no quotes.

Whenever it says he, him, himself, or the giver, you would say I, me, or myself.

any dialogue (stuff in the quotations) would stay the same.

hope this helps.