Had these cracks and holes in the plastered wall against the door frame. It's only missing on this side.
Mixed plaster c and thought I got it really nice. Before painting, when I was smoothing out something that went wrong, I noticed it was loose, so I had to peel it all off again.
I only had that day to finish painting before the family came home, so I'll have to fix it afterward. Is plaster c what I should use but be more meticulous? Or are there simpler solutions that work?