Take a walk every day. No headphones or music, just take a walk through your neighborhood, nature if it’s nearby or anything. Aim for an hour each day, at least 30 minutes.
Look for non-screen hobbies, or at least non social media hobbies. Things like drawing, writing, making music, woodworking, 3d printing Warhammer, or even reading books. Don’t beat yourself up if you don’t work on your hobbies a lot though.
Besides this I hear people being positive about journaling, but I’ve never tried it.
My cure:
Besides this I hear people being positive about journaling, but I’ve never tried it.