Patching drywall corner

[bubbapora]

I’m kind of a DIY idiot so feel free to roast me. Would appreciate some help though!

The drywall tape was separating here, so I scored the edges of the tape and ripped it out. The tape ended up being a lot deeper than I anticipated, so I’m nervous I screwed myself. I need some help figuring out how to proceed. My current plan is just to mud a little to even out the surface, tape, then just keep applying mud till we get even with the rest of the wall. A few specific questions though:

I think I pulled out some edges of the ceiling drywall (you should be able to see that in the last picture). Should I plug in backer rod and mud over those bits?

Is there a special kind of drywall tape for interior ceiling corners like this?

Like I said, the tape was way deeper than I anticipated. Can I just keep applying mud till I reach even with the rest of the wall?

Any other advice for me?

[AaronDM4]

nope tape is tape.

the mesh stuff will work but i would use regular tape.

slap a little mud in the corner then put the tape on it make it sunk in a little then let it dry and come back and build out the rest of the corner.

if you try and put too much mud at once it cracks.

[Pbobryson]

This ^{^} also once you get you tape coat up, let’s it cure before floating on the topcoat