If you cannot use Perl expertise for anything else, there's tons of legacy web applications in Perl that still need supporting.
I use Perl frequently when I need a quick one-time access to data - for example extracting data from spreadsheets, databases or web pages.
It's also the language I'm most likely to use when I need to do something more powerful than a straight shell script but less complex than a standalone
Java application - especially if it involves regular expression matching.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.