Need help going forward

Just wanna start with saying I love this game and everything about it. Music, art, story, voice acting, you name it. But good god, it's hard as balls (for me). Been stuck for almost 3 months in UN in specific fights and I don't have any idea on how to beat any of these fights:

• Red Riding Hood Mercenary

• Malkuth Realization

• Crying Children

Any help would be appreciated. I want to finish this game without mods to get the full experience (if there are any). Thanks.