The ideas are good! That's something I'd read.
After you know your idea, it's time to daydream a bit~ Mostly, the thing I do when I write is to keep the end in mind. I "sketch" some scenes in my head before I "color" them. If you see any prompts sometimes and think they are good, Involve them. Don't care about outlining at first but the end and then do everything to keep the character from reaching this goal, or ending. Idk, maybe it's a sad ending, maybe you want an and-they-lived-happy-after one.
After you figured out an end, you think what entrance your character shall do. The reader is mainly hooked when the MC does an action that's extraordinary, even if it's just a little one. Or start with a fight with someone who plays an important role in your book. Whatever, just don't go with "They woke up" or their morning routine therefore is time later on.
Perhaps you can insert some kind of secret, a side plot thing that hooks the reader as well.
Well, and after that, you just start writing I guess, let the story roll. One thing, never look back or compare yourself. When the book is done, you look over it and fill the plotholes, polish a bit, and boom.
There are good advice-pages and pictures on Pinterest, perhaps if you'd like to look there.
Hope I helped a bit? Maybe I just said the things you didn't need, maybe they helped anyway lmao