Training character LORA with kohyaSS

I have been trying to learn how to train character LORA with kohyaSS, watched and read some guides but it seems like I'm doing something wrong.

Is there a ready to load config for SDXL model like illustrious?

I have a simple dataset of 40 images (captioned, manually edited) but I can't get all the options right, there's so many my head hurts.

There's also a speed problem, I have RTX 5090 and it took me a few hours to finish 10 epochs so I guess I really don't know how to set things up even tho I read quite a few guides.

If there's any config ready to load I'd be grateful if someone can link it for me.

Also please don't say I'm stupid, I already know that.