How do I turn on alerts for messaging?

[AC Question]

I am missing most of my texts because my LG-G4 does not play any sound when I receive a new text or if I text someone and they reply back. I have gone through every menu option I can think of to solve this issue ( I am sure if it something really simple). If I miss one more text from my boss ( wife) I will have to consider tossing this phone and going back to an iPhone ( and I would really hate to do that). Thank you for any help you can give me