Planning to sell books but don't know much about shipping

So hello, I really don't know how to start. I've been on carousell naman and while my friend is the one who is in charge of selling a few of my books naman, I really want to also sell them but I don't really know much about shipping and there are times na napapaisip ako "what if meetup nalang hehe" kasi di talaga ako marunong😭 Help a girlie out here pls, what app and how do you go from that app? How long is the communication between your courier and do you have information about your customer's order delivery details?