HELP! I am prepping my walls to paint. I have stripped the border and am currently sanding to smooth the last adhesive off and anything else before I paint. The walls are in my bathroom which is small & has no vent system. My problem is that the old paint is peeling off the walls as I am sanding like dried school glue on your hands. Do I keep on sanding? Do I peel the old paint off as it bubbles up and comes off the walls? It is not taking the primer with it thankfully. Thanks for any help or suggestions.