How do i beat this thing?

I cannot beat this. This boss literally made me not want to play this game anymore. I stopped playing for few weeks and i really really want to finish it but i can’t. It’s so annoying it makes me want to throw my switch and never play any ff game ever again. Please help.

I cannot beat this. This boss literally made me not want to play this game anymore. I stopped playing for few weeks and i really really want to finish it but i can’t. It’s so annoying it makes me want to throw my switch and never play any ff game ever again. Please help.