How do you beat Brave Veronica and Celica skill study?

There should be guides online, whether on youtube or some kind of forum. I know for sure that youtube will have the solutions however.

Pheonixmaster1 has guides for all of the Skill Studies and Grandmasters; you can look at his channel if you want a guide for every one. I personally haven't finished that one either, but that's just because I focus on other content.

If youre having trouble with those maps you clearly NEED to git gud and stop relying on others to solve your problems for you, thats WHY the maps are there.