Studio Ghibli movies taught me that endings doesn't have to be similar of some endings in real time movies. What I mean is, in stories, most of characters, if not all, have their own dilemma or problems. And at the end of the story, they were able to conquer their difficulties (could be by someone or other characters' help). It's not always marrying, dancing, laughing, saying “yes!” to a suitor, having children, or getting rich and the like. Sometimes, endings are like facing or conquering fears, getting out from a danger zone/situation, or realizing what really the heart shouts for. For example, in the movie titled Whisper of the Heart, as the title says it, Shizuku (the lead female character) is confused and doesn't know what to do with her life. She wants to write but she's at the time captured by the thoughts that she can't do it. But in the end, she was able to write a story because that was really the whisper of her heart— instance like this is a great beginning and a great ending. Or could be that love was once hated, but now being adored.
This is what I learned from Studio Ghibli movies.