Thank you for your kind words, I'm glad you found this post inspiring 🙂
You can read more about how to get started with Midjourney here:
https://midjourney.gitbook.io/docs/
You'll need a subscription though so it's not free (you can create 25 images for free if I remember correctly but that won't take you very far, after that you need to subscribe).
And there are of course other options, Midjourney was just the one I chose to start out with.
Looking forward to seeing some of your work soon 🙂