Hey! Welcome to TPF.
You have a good eye for some nice subjects, it seems. Now you need to try to make them look interesting in the far restrictred view of your camera. What's often interesting to our eyes can be less exciting when cut down to a smaller size and without all the various environmental things going on.
Look for neat angles, interesting light (dusk and dawn, for example), unique perspectives, cool patterns, interesting details, that sort of thing.
If you're local to places it makes a lot of sense to keep going back and trying again. You can learn a lot that way when your subject doesn't change much aside from environmental factors.
Keep at it!