I totally agree with these gals. I think a lot of folks get overwhelmed by the notion of exercise thinking it's some elaborate scheme, plan ... when all we really need to do is start moving more.
My favourite story is that I used to stack things at the stairs and wait for the kids to come home and carry them up
And as for the depression/control thing? You can be in control of your movements, how much you eat ... take heart in that. The whole world may be flashing by but you can control those simple things.