First of all, I need to tell you guys, that this webiste is amazing! <33 Thank you guys for all the great advice. I was using die, but must have lost it somewhere when using CTRL+K in nano. I was afraid that Net::Pcap was unable to sniff wireless packets in the first place, but I got it to. Well, i think i did.
I did:
-------------------
iwconfig wlan0 mode monitor channel 6 (channel of my AP and clients)
ifconfig wlan0 up
perl wireless.pl wlan0 (wireless.pl is below)
And i put to print "$packet" which is the raw packet which beeped up my ssh terminal and loaded it with garbage, except a few plain text areas!!
The ESSID's where there!! so maybe this is so far possible!

when i run the program below, i get no warnings, no errors, etc, but the MAC address output looks like this:
root@WeakNetLabs:/home/assistant/code/wifi# perl wireless.pl wlan0
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
000000028509, 000018002e48
^C

which is odd. I fixed the syntax error in the loop, i guess, but ended up using the below code example found on the Net::Pcap tutorial at CPAN.

wireless.pl:

#!/usr/bin/perl -w
use strict;
use warnings;
use Net::Pcap;
use NetPacket::Ethernet;
use NetPacket::IP;
use NetPacket::TCP;
my $error;
my $device = $ARGV[0];
my $WiFiobject;
$WiFiobject = Net::Pcap::open_live($device, 2048, 1, -1, \$error);

unless (defined $WiFiobject) { die 'Unable to create packet capture on
+ device ', $device, ' - ', $error; }

Net::Pcap::loop($WiFiobject, -1, \&syn_packets, '') || die 'Unable to 
+perform packet capture';
Net::Pcap::close($WiFiobject);

sub syn_packets {
        my ($user_data, $header, $packet) = @_;
        my $macaddr = NetPacket::Ethernet->decode($packet);
        print "$macaddr->{'src_mac'},  $macaddr->{'dest_mac'}\n";
}
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