There is much talk about microservices patterns, from saga and service discovery to Circuit Breakers, but few people know the real way to implement these patterns sustainably—sustainable with the intention of being healthy and following best practices within your architecture/project. In this presentation, I aim to demystify the challenges and lessons learned when adopting the Circuit Breaker pattern, showcasing strategies for adoption in critical environments. I will also be demonstrating live coding with the Microprofile framework for Java developers sharing the best practices when using this framework!