Beef (Kali Linux): Exploitation Over WAN?

I tried everything to make my connection on beef public (to hook up browsers that aren't on my network) but for some reason I can't. I already opened ports: 80, 53, 5432, 55552 and 3000. Also I've changed the config.yaml a lot of times and still nothing. I already used the "service apache2 start" and "noip2" commands. Also I've installed No-Ip. Can someone help me with this? I'm almost giving up.