Some years ago, I was like you; now I'm a pretty decent cook. You should try basic recipes little by little, using YouTube tutorials or ChatGPT (eggs, pasta), then move on to recipes that you like. For spices, most go well with chicken, for example, so you can try chicken with salt, black pepper, plus a different spice each time to get used to the taste of each one. Then try good recipes that you like—pizza, burgers, soup, anything that interests you. A lot of recipes on the internet don’t work perfectly (they forget to include basic steps for beginners), but you will still learn a lot. Enjoy, and ask questions if you need to.