A photo or two would probably help.

Have you considered blackout roller shades?

SONNI1 i tried them and didn't like the once installed, besides, they cover the windows as well.

Hi Becky, here are some pictures, this is how it looks with the blinds

And this is how i would like my living room to look without my blinds but still providing the privacy i need. Is there any film that i can put on the glass to block the view from the outside?

There are things like this one way window film:

https://www.filmcote.co.uk/privacy-window-film/one-way-window-film/

Is that actually a deck outside the window? How much privacy do you require?

There is vinyl privacy film, but it's there during the day as well. To me that would be as unpleasant as blocking the entire window with blackout roller shades; though you can install them inside-mount vs. outside-mount which covers less of the actual window. And even the fairly translucent stuff still blocks the light. Plus I would imagine that it's about as effective as your sheer curtains.

https://www.bedbathandbeyond.com/store/category/home-decor/curtain-rods-hardware/window-film/12632/

What about a different sort of blind or shade -- I can't stand Venetian blinds (are they called that anymore?), but I do like bamboo matchstick blinds/roller shades and Roman shades.

Or, switch out your sheer curtains for something less sheer. You could replace your current curtain rod with a double-curtain rod, and have a more opaque pair behind the sheers.

With that fence, it doesn't seem that anyone would be able to see into the room, so I would leave it as is without any covering if that is the look you like. I like that, too, and have nothing on mine-even ones that face the street. I use shrubs and trees to block a clear view in at night. Your fence would seem to serve the same purpose.

Thanks everyone, no it is not a deck, its a small backyard and then the neighbors house right behind my house, they are all townhomes, so yes, I would have people looking into my house from their upstairs bedroom window if i were to leave my windows uncovered.

beckysharp Thanks Becky, my curtains are sheer, and besides i have the glass door that doesn't have a curtain only the roller blind.

You could try lighting the back of your house or the back yard so that the glass reflects more light outwards than it allows in - sort of like creating an outdoor glare. This works best if you have a certain type of glass that reflects in one direction and not the other.

You could also get a piece of textured acrylic to put on the door - I assume you are more concerned with the door than the window. You might be able to attach it with mirror supports so that it would not be permanent, in case you change your mind.