Seeking Guidance for Future Career Path

In my current role, I have been exposed to a variety of technologies over the past six months, including Flutter, FlutterFlow, Kotlin, and Swift. While I have gained some experience, I have not been able to fully master any of these areas. To enhance my career trajectory and potentially seek new opportunities within a year, I am seeking advice on which technology I should prioritize for in-depth study and mastery. Please provide recommendations based on factors such as: 1. Market demand and future trends 2. The potential for long-term growth and specialization