There's no better tip for future writers than to immerse themselves in the world of books from a very young age. But you didn't do that. You spent your childhood watching TV and playing Tetris. Oops, sorry. You can try to catch up now, but let's be honest, you don't have the time and patience a little kid has. There's a little girl in Wyoming right now with her nose in a book, who will kick your ass in creative writing anytime.
To write an interesting and captivating story, you have to experience the world, see things that no one else can see and describe them to your readers with a rich and colorful language. People want to read about the mysteries of egyptian pyramids or the wonders of India. Give your readers a magical experience that they could never have on their own. Oh, but you've never even been on a plane. That sucks. You have nothing magical to tell about anything because you've never been anywhere. Well, maybe you could write about a guy working at a Pizza Hut. That could be exciting to some people I guess.
Yep. Right after you go to the gym and start that diet you've been promising yourself since 2008.
Every writer has their own unique voice. Their style of writing that can be identified even if their name isn't on the cover. You can spot a Hemingway or a Poe no matter what they write. You need to find your own voice. You didn't do that yet, ha? Well, I guess it's okay to start looking for your voice when you're 30. I'm sure it won't end up being a copy of someone else's voice that you think is yours when you start but then you realize you're just writing in the exact same style as the last book you've read.
Writing is an art, but it's also a science. No one will take you seriously if you don't write properly. A first impression from an author is very important, and if you present yourself as someone who can't even write a correct sentence, no one will think you're a true writer. But you hadn't written a complete sentence that didn't use emojis for 4 years now. Not to mention you still confuse "Your" and "You're".
If you want to write a convincing world, you have to know it through and through. Even the creator of Spongebob Squarepants used to be a marine biologist before he started writing about deep sea adventures. You could do that, right? You know stuff. Oh, You don't? You have no knowledge of anything interesting whatsoever? That sucks, I guess you can lie or make something up, but you'll have to do a ton of research that will delay you from ever actually sitting down and writing.
Oh, you already sent it? That was stupid. Did you at least proof read it before? You didn't. Okay. Good luck.