Build for yourself before you build for anyone else
Your own repetitive task is the lowest-pressure place to learn a new tool. Nobody is depending on it, there's no deadline, and if it breaks, nothing important is at stake. That freedom is exactly what lets you experiment, make mistakes, and actually understand what you're doing.
Every tool I use daily now started as something rough I only built for myself. Building for a client or a team too early adds pressure that gets in the way of learning. You start optimizing for looking competent instead of actually understanding the tool, and that's a worse trade than it sounds.
Try this today: find one small task in your own routine that you'd love to hand off to a tool. Build a rough version just for yourself, with no audience and no deadline. Once it works and you understand why, you'll be in a far better position to build something similar for someone else with real confidence instead of guesswork.