Hi Barbara, here's some help! https://www.thespruce.com/cover-your-walls-with-fabric-452675
Hi Barbara! A great question and hopefully you will gain some helps from these sites! Good luck on your project.
I did this with paper and it worked out great. The recipe should be pretty similar. You can see what I did here: https://www.flippingtheflip.com/2014/05/office-papers-papered-wall-done-yay-fun.html?m=1
Easy Peasy. I did this with a sheet 40 years ago when it was popular then. Just soak a sheet is starch and tack/pin it to the wall smoothing it with a your hand to get got all the wrinkles. When it dries it will stick to the wall so remove the tacks/pins. So easy to remove, then just wash the wall.