I’ve been writing Go for over 8 years now, and like many developers, I started with high hopes, clean code, and a naive understanding of what it takes to build scalable, maintainable systems. Over the years, I’ve written more Go code than I’d care to admit, and like many seasoned developers, I’ve accumulated a list of regrets. These aren’t just about syntax or Go-specific quirks; they’re about the decisions I made , the assumptions I held , and the trade-offs I didn’t fully appreciate . So, if you’re just starting out with Go or you’re thinking about using it for your next big project, here are some of the mistakes, lessons, and regrets I’ve learned the hard way. 1. Overusing Interfaces The Mistake When I first started with Go, I was enamored with interfaces. Go's interface system felt like magic it was so simple, powerful, and decoupled. I thought that every single component should be abstracted behind an interface for maximum flexibility.…