I'm normally posting on /b/ and /x/, first time on /out/. Basically I'm homeless and recieve ssi, and I need some kind of camp setup. Here in Western New York temperatures are below freezing so warmth is a top priority
So far I'm getting a tent, heater (not sure what kind yet), and a sleeping bag, along with anything else I need

Trouble is, I'm gonna need to be behind a building to use their electricity for an outside outlet. I wanna get a portable heater but I don't have the money to keep buying gas.

What do you recommend for me? How can I make it the New York winter in a tent?
Also what should I invest in? I just really need advice and guidance here
Strong winter tents I can get from Walmart recommendations heavily appreciated
Please help