Experiment with mediums or stick with the classics. See below for two approaches.:

Week 1: Chalk

Week 2: Clay, sand, mud

Week 3: Paint

Week 4: Draw

The first approach of two approaches offered here, is to freestyle and play with art. Go wild (i.e. a messy project) or keep it low key (pencil and scratch paper).

The second approach is to hone the artist’s eye. In other words, see things without assigning words/labels to what one is seeing. The artist’s eye first learns to see and copy. Once this sufficient, one can learn the myriad of techniques that exist to assist the artist in achieving a certain product. Everyone is an artist.
(Article: How to Train Your Eyes to See like an Artist)