i also see a problem in doing so because i dont have the time to go to a gym so i do workouts @ home, I've got dumbbells with 4x2,5kg and 4x 1,25kg weights, and a "pole" thing (whatever

I do routine like this: all the muscle groups once a week, so should i increase the wheight once a week, or once every second or maybe in between sets? I have no idea really how this works so fill me in here.
sorry that it is so long and.. unprofessionally written >_<