You can do a few things to help your paint dry faster. One is to use a hair dryer on the low setting. Another is to put your painting in a warm room or front of a fan. You can also try using an acrylic retarder. This will slow down the drying time of your paint so that you have more time to work with it. Finally, you can try using a spray varnish. This will help to seal the paint and protect it from dust and smudging.