I really enjoy working and see myself doing that all my life but then I have a certain anxiety that the good times will be over rather sooner than later because

I really enjoy working and see myself doing that all my life but then I have a certain anxiety that the good times will be over rather sooner than later because (1) maybe we’re living through the peak SWE salary times and (2) I’ll become unemployed due to ageism. This anxiety forces me to contemplate FIRE tactics.