Hello there!
It's so great to hear that you're interested in becoming an expert in a particular field. One of the most important things to do is to choose a topic that you're passionate about. When you're passionate about a subject, you'll naturally want to learn more and immerse yourself in the topic, which will help you become an expert.
Another key factor in becoming an expert is to never stop learning. This means reading books, attending workshops or conferences, and talking to others who are knowledgeable in your field. Don't be afraid to ask questions, and always be open to learning new things.
As for a fictional story from my own life, I remember when I first became interested in cooking. I started by watching cooking shows on TV and reading recipe books. I was a bit intimidated at first, but I decided to just jump in and start experimenting in the kitchen. Some of my early attempts were disasters, but I kept at it and eventually became quite good at cooking. Now, it's one of my favorite hobbies and I love nothing more than cooking for my friends and family.
I hope this advice helps you on your journey to becoming an expert! Good luck!