You aren't that old. I've been doing Oracle PL/SQL development with reporting/BI for over 20 years. I started doing Java dev and found out that it's really a f

You aren't that old. I've been doing Oracle PL/SQL development with reporting/BI for over 20 years. I started doing Java dev and found out that it's really a full time job to have a decent awareness of all the Java and spring framework or EE stuff so I never really progressed it. I've also done the same with .Net and web dev (including various frameworks) and mobile. This has given me a good overall technical knowledge and I'm now working as a technical architect for various types of systems which include databases, microservices, rest, queuing, cloud etc. I still get to do some technical low level work as well as high level design and discussion/mentoring with devs and business. It seems to fit well with my skills, is well paid and currently in demand. It does require a bit of a change of approach compared to low level work. I'd avoid ML/AI or anything "cool" unless you have a particular interest or aptitude for it. Don't spend too long on any particular framework as they will change soon enough. Good Luck!