[mo_42]

Context: I'm roughly half your age.

> What can I do?

Try to become a CTO of a small, really small or even startup company.

If you write your CV in a similar style as here, I'd suggest to rewrite it a bit. Don't focus on lists of technologies but rather on topics where you created value. Something like, oversaw a team of X people who developed Y product in Z years; funded and lead company with X employees which generated Y dollars of revenue...

Try to look from the perspective of the people who should hire you. For example, if you want to be hired as a CTO, your boss will be a board of directors (don't know if this is technically correct but you get the message). Those people care about someone who keeps the company running in terms of technology, who gets things done, and who can work with people. They don't care about assembler or Django skills specifically but your experience will be proof enough that you know about this.