is too late to start applying plaster again
It's a half hour job total
. WAY easier and better looking than a half assed repair.
1. Remove the fixture (s).
2. Mask off around the hole with 2" wide blue tape leaving about 1/4" of the exposed finish.
3. Mix up some 10 minute
4. When the mud reaches the right consistancy (peanut butter), apply it with a 2" flexible knife. Push it up into the crevice a bit and trowel it off flat.
5. Pull off the tape as it is drying and feather it in with your finger.
6. Put a bit of paint on a brush and touch it up.
7. Re install fixture(s).
Don't skip step #2