Keep your eyes open when you're out and about, deviate and take the sideroads when you have time. Drive down dead-ends and come back again. Look at both sides of the road in both directions.
When you spot somethings, even if the light isn't perfect, take a few snaps to remind you what it's like and make a mental note of what condiions might suits it. Make a note on your maps. Create a personal photo location Google Map (you don't need to share it, I don't share all of my favourite locations). Go back from time to time.
Learn to read a map and spot potentially interesting locations.
Look at photos others have taken, look at paintings others have painted. Pay more attention to the paintings than the photographs.
Read. Lots. Of everything.