I think most if not all Street Photographers "Lose their Groove" at some point and this blockage of creativity can last for days or weeks and at this moment in time i'm in that situation.
I can only speak of my own experience and it can be frustrating when you are out on the street and nothing is happening . I like to call it "Right Place - Wrong Time Syndrome"
I can find myself questioning what i'm doing and i can easily forget the real reason i do street photography. Maybe i'm too critical of my work ,maybe i'm looking to hard and should try and keep it simple. But what ever it is it can be disabling especially when you are gripped with this self doubt.
So how do i get myself back "Into the Groove" ?
The first thing is to have a break from the street for a few days and recharge the creative batteries and spend some time going over images from previous street walks that i have done , i have found loads of little gems that i forgot i had.
Pick up your favourite photography book and sit down with a coffee and really study the images , look at the colours ,the composition and the style of photography. My 2 favourite books for inspiration are Bruce Davidson's Subway & Ernst Haas Colour Correction.
Use your camera around the house - I like taking portraits of my son using different techniques like flash , playing with the camera settings and trying something different to get the creative juices flowing again.
Limit the use of social media !! For me i can find this even more of a distraction as it can put that little seed of doubt into my head when i see all these wonderful images from exotic places and i'm sat at home watching the rain pour down in Manchester.
Listen to Photography podcasts- I'm a massive fan of the candid frame podcast presented by the wonderful Ibarionex Perello . For me this is the best photography podcast out there. - http://www.ibarionex.net/thecandidframe/
Plan a trip to another city. You can get stuck in a rut shooting the same streets day in day out , i know we all can't afford expensive trips abroad but i recently booked a flight to Brussels for £38, so it can be done on a budget. Fly out on the first flight and come back the same day on the last flight.. Or take a train to your nearest City and get lost in the streets.
Losing your Groove is never permanent and it always passes but its what you do while your stuck that matters.