Brake light lights will not turn off
 

I've tried every thing ..brake lights will NOT turn off on Volvo wagon... any idea or suggestions?
Please please I'm.a single.dad and cannot miss work or.afford new battery

Check above the brake pedal for the plunger switch that activates the brake lights when you press the pedal and see if it is stuck. If not, disconnect it and see if that turns them off. If it does, you will need a new switch. In the meantime disconect the battery so it does not go dead on you until you figure it out.