As a middle ager, you want two things: to stay relevant for the foreseeable future, and freedom to control your time. Those would be my optimisation suggestion

As a middle ager, you want two things: to stay relevant for the foreseeable future, and freedom to control your time. Those would be my optimisation suggestions. You need to stay in a technology trajectory that will have utility into your 60s, and you want time to work on your own projects and potentially raise a family or find a mate, or whatever is your personal life goal.