I find whenever I might have something weighing heavy on my mind, graphite tends to be my medium of choice to work with. For me it's the most relaxing medium to use helping me to lose myself in what I'm doing (forgetting for a time what was on my mind when starting).
This is a caladium flower that came up with a small clump of pale green caladium leaves edged in dark green. The flower was white.
Behind the caladium is a large reddish violet impatiens plant and with this drawing, I tried to only suggest them using a putty eraser to lift some shapes.
This was worked in a Strathmore Visual Bristol journal using a 5.6mm cluth pencil with 4B lead and a 2mm mechanical pencil with a 4B lead.
I love the blending of graphite and lifting with a putty eraser.