To make paragraphs properly, they consist of many things.
For starters, paragraphs are at least 5 and 6 sentences long, but if the sentences are short, the paragraphs can reach up to 10 sentences!
Paragraphs aren't very short and aren't really long either -
Paragraphs have complete sentences. You'd capitalize the first word of each sentence, like I'm doing. You shouldn't abbreviate words into shorter letters in a paragraph. You should always correctly punctuate the end of every sentence, too. Like, you know how in stories the paragraphs are correctly capitalized and punctuated. If you were writing, we'll say, an essay for school, you'd do the same.
When writing paragraphs, don't write like you're texting someone on the phone! Write as if you're writing a really long story...