Where is global warming when you need it?

Recently, the weather has been quite unstable. Sometimes it's hot, sometimes it's freezing cold. The cost of my electric bill DOUBLED in January (mainly) because I used the heater. So my broke ass decided not to use the heat anymore. I wear a lot more clothes during my sleep these days. But it is still not enough. It's 40-30 degrees right now (in the afternoon) and my last resort to gain warmth is to switch on the oven (because gas is free for me). I'm standing by the oven like a homeless man making a fire under the bridge. Hopefully, I don't have to stick my head inside like Sylvia Plath did.