If you're starting out with File::Find, then the best advice I can give you is... don't. It is old and bletcherous and there's no need to use it for new work.
Much nicer is File::Find::Rule, which will cut off the depth search in a much more declarative manner, letting you get on with your job and not having to write so much make-work code to tweak File::Find to do your bidding.
my @files = File::Find::Rule->new
->maxdepth(2)
->file()
->in('/path/to/stuff');
• another intruder with the mooring in the heart of the Perl