I need help again😭

Yesterday I got out of a torch draught (🙏)

Today I got to sylvian and I'm geniunely lost at how I'm supposed to beat her

It's my first playthrough, and I haven't watched any prior gameplay. Searched for a tutorial on how to beat her though, as she was basically one round killing me. Everybody got at least 1 or 2 other party members, I didn't even know you could do that - I play as the knight, and I only have greater blood golem.

(For some reason the girl doesn't follow me to the dimension, but I'm assuming that's lore significant so please don't spoil🙏)

I grinded for an empty scroll and got the locust swarm, I do around 250-300 damage melee and 350 with greater hurting (I don't have black orb, the girl does but she's god knows where)

Because of my previous torch draught, I now have no empty scrolls or additional torches left (disregarding the one I need to traverse the dimension), so I doubt I'll be able to magically get any party members😭

I got like 3 body potions, some wine and one mind potion, but anyway I play it I end up dying pretty quickly, especially to the entanglement thing she does.

I have saved previously one file where I still have one empty scroll (the one I used to get locust farm) so if there's any other spells more usual, tell me🙏

Anyway, is this a lost cause? And thank you🙏