you were given a lot options in your other discussions. I would still recommend to use a physical router for now and do some reading about network setup and pfSense as a VM afterwards.
So can you please give me any information how i can make the real IP that comes with this PPPoE account a menagment IP for the ESXi host.
You should not expose the management network to the internet. Do management from the internal (non-public) network. If you expose the management network you may experience this for example: ESXi 5.5 hacked, next moves
And do not post your public IP, edit you initial post and delete or obfuscate that IP.
ESXi has only a very basic firewall which gives you kind of low level protection. Put a real router in between with a fully configurable firewall and put up some VPN for management access.