My name is Mike and I'm a first-time homeowner so please bare with me.
Here is a quick back story:
I have a completely finished basement - all the walls and ceiling are drywall.
Recently, I had a HVAC hose disconnect from the duct work in the ceiling and the only way to get to it was to cut a square hole out of the ceiling.
I cut an 18" square hole and was able to fix the problem great. I specifically cut the piece so that one side was half way on the joist so I can place it back in easier. I added some support beams on the other 3 sides and then placed the square back into the hole and screwed all 4 sides in. I then speckled around all 4 sides for some additional support.
Now for my problem...
My ceiling is not painted regular. The previous owners decided to use a type of texture like the picture below. I thought the Spackle would blend into the ceiling since it's white and has a similar texture. I was wrong - the ceiling happens to be a very slight off white. I had Home Depot color match paint and painted over the Spackle some but you can definitely still see where the square is. And even though I used flat paint, you can see that it still appears to be a little more glossy then what was previous. It blends in a little more with the paint, but I want it to ideally vanish.
How can I fix this so that the square I cut out is nearly invisible?
Actual picture of what I tried to repair:
Thank you for any help you can provide!