A few months back we decorated a few rooms in the house. I painted the window sills, skirting boards and doors/door frames with Crown breatheasy paint (I was pregnant at the time so didn't want to use gloss). Stupidly I didn't prep the surfaces first, other than washing them down. I believe I should have sanded them a bit (but not completely down to bare wood?).
Anyway, now bits of the new paint are flaking off, eg if the vacuum cleaner hits the skirting board. It is also happening on the staircase which was painted with gloss by "professionals", who didn't sand it down first either. Actually that's even worse as some of the corners had paint chipped off down to the wood, and quite a lot of the new paint has now chipped off in the same spots.
So what is best to do now? Should I completely remove all paint, or just the paint I put on and how? Any help would be welcome. It feels like a big job at the moment.