This reverse proxy thing might have to be the next thing i try to teach myself.
It was tricky for me, but I've got no Apache or Nginx experience. Used smdions website and got myself a domain name, SSL and all set up. NZBget, Sonarr, Couch, my eBook library, deluge all accessible with username and password. Very handy, send me a PM when you get around to trying it and I'll try and help.
I have a dynamic ip with BT, will that impact anything ?
No, so have I, basically get a domain, I highly recommend namecheap and then you can run ddclient docker from CaptInsano and it'll update your DNS automatically every ten minutes if necessary.