there are two things you can do:
reduce the amount of water going into the air
extract more of the warm damp air and replace it with dry, cool air*
For reducing the water, first thing is never to drape wet washing around the house or over radiators. This generates a huge amount of damp. If you can't afford to run a tumble drier, and have no outside space, rig a line in the bathroom, peg up your clothes and run the extractor fan, continuously, with the door and window closed.
Other ways to reduce water are to put lids on cooking pans and breathe less.
To remove the wet air from your home, ventilate it more. If you have trickle vents, use them. If not, open upstairs windows a crack. When you get up in the morning, throw back the covers and open the bedroom windows until after you have had breakfast and got dressed. By then any condensation on and around the windows is likely to have evaporated and blown away.
use an effective fan in the bvathroom, and run it, after baths and showers, until the room is properly dry.
*people think that outdoor air is cold and damp. but the way Relative Humidity works, cold air holds less water vapour than dry air. For example a bucket of sunny air in the Sahara holds more water than a bucket of drizzly air on Cairngorm.
If you don't have an effective bathroom fan, and cooker hood, extracting outside the house, and running reasonably quietly, that can be fixed. Modern fans can be very quiet, and use negligible electricity.