I got a new job as a Perl back-end developer. I have been working as a back-end developer for the last 3 years primarily in C#, but I also have some experience in JS and Java. I have read Perl docs a few months ago, and I have written some small exercises but I still feel there is something missing.

I'm looking for a site/book/course with a practical approach (exercises, challenges etc.) to jumpstart my learning process this time. What would you recommend?

Looking forward to reading your suggestions :)