Pihole + Wireguard VPN + Dynamic DNS

I am having difficulty setting up a pihole vpn server on my raspberry pi. I have set up pihole on my own but cannot for the life of me get wireguard to run in tandem with pihole. I wouldn’t mind doing a fresh install of my raspberry pi with whichever packages you suggest.

I want to set up pihole and wireguard on my raspberry pi as a server. I have a dynamic ip and I would like to have that automatically update with the hostname of a ddns. I would also like a firewall within my raspberry pi to be more secure.