Make your own learning party from the start, all the other people with no experience can join that and if you learn well, next you can join a party with requirements.
I'm an extremely patient individual, I spent a lot of my time online teaching other players, but honestly, when I want to clear a fight, I don't want to start over from the beginning every 60 minutes >.>

Thordan EX example: I am perfect up to phase 7, but I also have experience from phase 8 to the end. I want a party that is learning to do phase 8 til end perfectly as well (and get the clear, while at that).
But I'll never even see phase 8 if everyone keeps dying to the knights..or the meteors..or basically just anything in phase 1-7. I'm not an NPC, I have my own goals, and they don't revolve around spending 24/7 only teaching newbies and never progressing myself.

I'm a fast learner, it takes me about 2-3 tries at most to have something down to the point where I never mess it up again. Back when I was trying to clear T9, I understood how the meteors worked in 2 tries. But I spent the next THREE WEEKS watching other people fail to do them right for hours upon hours each day. And then I built my own group with only people who also knew what to do, because, at least to me, learning involves getting confronted with something new. Only repeating what I already do without error is not learning, you know?