Can't access the internet

I just got up the starter kit for internet access program for financially challenged people I guess Congress should ask me if I had anything to plug my modem into because I don't ¡ Anyway does anybody know how I can access the internet until they come out here and install some kind of something in the wall in my trailer that I can hook my modem into. I have a SmartPhone ,I have a Roku but I can't set up the Roku because I don't have a password for Xfinity I'm 65, I'm disabled ,God I would love to be able to watch TV !!!! Watching my stereo doesn't help much can anybody help me cuz service technicians are not supposed to come see me until the 19th and I've got this modem 4 days ago and I still can't use it DAGNABIT ❗❗❗❗❗❗❗❗❗