Another issue I noticed in your writing is that you put periods before phrases. I mean, I'm not an English teacher, but that really confuses some people. So anyway you have to put a comma depending on where the phrase is. Here's an example though I'm not very good at this sometimes. The king, a fearsome and powerful leader, led the war. That was one where the phrase interrups the sentence. A phrase is basically anything without a subject or verb that would sound wrong as a sentence, so in this example "a fearsome and powerful leader" would feel wrong as a sentence. But you can also place phrases before or after sentences. "The pups had no idea what was being said, playing around and practicing fighting." That would be how it would have to be instead.

-Lynx sorry if this is long.