How can I warm myself up?

It’s always cold in my house because my father is always hot. My body doesn’t handle cold well. My joints stiffen up more than usual and it becomes painful to walk and move. Wearing layers of clothing doesn’t help much.
How can I warm myself up since my parents refuse to keep the house at a reasonable temperature?

Prompted by my ankle being fucked up right now because it’s cold, thus setting me back for the day