When you read Hemingway, for example, the first thing you notice is that he uses the conjunction and a lot, and he is fond of long sentences!
If I didn't know it's Hemingway, I would probably think it's wrong. Because you usually don't see it in the works of literature nowadays, and also, I was told that I'd better avoid long sentences in a paragraph.
I should add, there are also other works of literature that look strange to the reader, like when you read Mark Twain, and see some obsolete forms like I says, but you know that he belongs to the distant past, while Hemingway looks so modern, and just from the forties and the fifties. Even Mark Twain avoids long sentences.
I was wondering whether it would be alright if I try to write long sentences using and from now on when I'm writing?
I put some examples from Hemingway to clarify my point:
“So now do not worry, take what you have, and do your work and you will have a long life and a very merry one.
— FOR WHOM THE BELL TOLLS”
The hills across the valley of the Ebro' were long and white. On this side there was no shade and no trees and the station was between two lines of rails in the sun.
— HILLS LIKE WHITE ELEPHANTS.
The leaves lay sodden in the rain and the wind drove the rain against the big green autobus at the terminal and the Café des Amateurs was crowded and the windows misted over from the heat and the smoke inside.
— A MOVABLE FEAST.