I'm 54 y.o.

I think I'm completely outdated in my skill, as in the last 14 years, I worked on a specific business problem, with an old technology: a JSP application + javascript + postgres.

I do understand software development, agile, web application development, linux server, basic/moderate AWS skills, etc.

Now they laid me off instead of including me in the evolution of version 2 of the software. Maybe covid, company had almost no cash-flow. Well they have now...So basically they fired me to find money to rewrite the application.

I feel without hope at my age.
I'm a generalist.
I can understand fairly well everything you'll throw at me, reactnative, angular, nosql, python, but I have little first-hand experience.

I don't have a lot of management skills, even if I've given frequent presentations to C-roles and board, and I implemented a whole agile methodology in my team.

I don't know what to do.
The amount of technology to study is huge nowadays. When I was younger I could get away with some php and java.

Full-stack developer is a big word for me. Maybe I could handle a full stack web application, but not from scratch.

I feel at my age, I'll compete with 20-something guys with better skills and lower salary requests.
I don't think I can pull a night anymore.

I'm trying to shoot high to management positions with no much success.
I'd like to go on developing, I know that there are 50-something developer out there, but who managed to find a new position at 55? at 60?

As soon as I finish the few money I spared, I'll be on the street, I'l be the "website for food" guy.