Have you ever written a comedy novel? I'm planning to write something like that, but I don't want it to become foolish or shallow, that's why I think it's important to balance the funny parts with serious parts, or maybe evan tragic parts to make the story more worthy. What do you think?
I think you should read comedic novels. Learn from the ones that work. Also learn from the ones that fall flat. Your local bookstore is full of humorous novels, and ones that merely attempt to be humorous. Go forth, and research.
Every novel ever that has anything to do with real life is bound to have humourous parts. It might even end up being just a paragraph or two that are quite funny, and the rest is just serious and all that. But those paragraphs are enough, apparently, for editors (all those folks who do the publishing thing) to scrawl all over the cover about how funny it is, or how it'll make you feel all the emotions including making you laugh the whole way through... which it doesn't. So yeah, you see that bit I bolded? That's the bit where you're deciding to write a novel that will be described the same way as every other novel ever*. If you want to write a comedy, write a comedy. Nobody will call you foolish or shallow unless you're being foolish or shallow, and you can definitely be that way. Some of the greatest comedians are foolish and shallow. It's what people find funny. * not really "ever" ever. Just... you know. "Ever".