Go for a walk with a (real) camera and try to find something to photograph. 1. good exercise. 2. you'll start noticing more and looking at things differently. 3. you'll be holding a camera instead of a phone - so you'll stay more engaged with the exercise.
> Go for a walk
It's almost winter in US. Pardon me, but taking a walk in the dark, alone, with your camera doesn't really sound as a good advice.
I bet with your new iPhone you can take gorgeous photos at night but that can be fun only once on the blue moon, not every day?..