How can I cover my windows to create privacy?

You can get privacy a screen.

https://www.amazon.com/s?k=window+privacy+film&crid=3EP3LG99AQX9Z&sprefix=Wind%2Caps%2C340&ref=nb_sb_ss_i_5_4

You can use contact paper.

Holly: maybe this will help

https://www.dreamalittlebigger.com/post/diy-frosted-window.html

Here is a simple solution I used to create a privacy frosted glass window. Though it could last forever, it's nice that it is totally removable so could work for renters too!

I use the removable window film, it comes in everything from stained glass, to translucent panels some with etched designs, and some with colored patterns. I chose a green leaf design for the panels above the bed.... those awful transome windows. The translucent film I put on my kitchen windows to reduce sun damage and heat has been up for 17 years.