remote access to unraid

hello guys,

i want remote access to my unraid for if i need a file, but thing is i have no knowledge and i follow guides but i can not get it to work

i setted up duckdns,

i setted up wireguard,

i configuered them to the guides , but i am not able to remotely access it outside my home, i know i do it wrong probaly but i don't know where,

the guide i followed is https://engineerworkshop.com/blog/how-to-set-up-wireguard-on-unraid/

if someone like to help thanks,