Here is the absolute best way to remove wallpaper.
Use a scoring tool. Run it every which way all over the wallpaper. The only way you'll ruin or damage your wall with it is if you push hard. You don't need to push hard on a scorer. All you need it to do is put tiny holes in the paper, not huge deep holes. So don't press hard.
Use a spray bottle. Fill it with blue windshield washer fluid. Yep. The stuff you wash your windshield with when you're driving down the road! Spray this all over the paper. Let it sit for 10 minutes then spray again.
Peel and lightly scrape (often not necessary to scrape) the paper off.
You can use vinegar but you may attract ants.
You can use fabric softener, but it will be slimy and you will have a hard time rinsing it off. Not only that, but you will have an even harder time getting the paint to stick to the wall after.
Blue windshield washer fluid is quick, clean, easy. You won't have to rinse off the wall. Just let it dry and your paint will stick easily after.
Oh.... don't believe me about the fabric softener? Go put some all over you hands... then have fun getting it off
