Don't want to step on toes, but in short - you can't. Part of the problem is the age genius/criminal curve which shows you the productivity of a typical male, a

Don't want to step on toes, but in short - you can't. Part of the problem is the age genius/criminal curve which shows you the productivity of a typical male, another part is that as you age there is only so much more bandwidth left for grinding shitty jobs and boilerplate code. The only solution is to own a dev shop by that age, otherwise you're f, excuse my bluntness.