Sometimes, stuff just sticks with you. Over weeks or months or years, sometimes that one scene stays burned into your brain. What is it about these scenes that makes them stay? It can sometimes just be a very shocking scene, or maybe its a certain description that really resonates with you and seems so true to life that you can’t forget it. Or something that makes you feel something so strongly that you feel like it happened to you personally.
Analyse these scenes, find out the secret ingredient that makes them so powerful, then use that new found weapon in your own writing. This is why reading constantly is so important to improving your own writing. Read what you want to write, but also grab a random different thing now and then. You never know what you’ll find out there that you can use.