I think I’m permanently stuck

First off want to say I love this game, and that this is 100% a skill issue, but I don’t see myself progressing past the black rabbit brotherhood fight. I lack the skills to deal with the quicker super evasive siblings and worry about the main boss’ rush at me they all can close the gap super quick and can close a large gap at that. Anyone else get stuck here or just me lol I’ve tried so many times I might have to hang it up for sanity’s sake.