Good on you for trying to pull yourself out of what can be a downward spiral. Starting with exercise is a pretty good way to go.
I've had some low points myself it's not easy.
Hang in there, one foot in front of the other.
All the best
Dave
From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"