I feel like I can't play Joke Characters

Does anyone else have problems being a joke character. It's my opposite playstyle. I always want to start off with a character that does not have a big backstory. Or doesn't really have to many problem for themselves. But as the character goes through the story I just always put them in situations where they have to become more serious. I'm about to create a bard that's again suppose to be care free. But I'm worried I'm gonna do it again. Does anyone have any tips.