What happens when you read a book? Do you see what happens?
Suggestion:
If you don’t yet think in images but want to think in images, I would say, create images in order to think in images.
Draw and/or paint by hand (take analog photographs).
Use your 2-3 hours for this. Soon you will feel the flow.
In addition adjust your leisure activities: Focus on visually demanding, aesthetically high-quality/interesting films, books, exhibitions, events.