Stay at a low level until much later. For the time being, the lower the better. Draw, draw, draw and draw some more. Magic is your friend, and the more the merrier. Learn Boost and Junction abilities with your GFs first, and don't forget to give your characters a GF when you get them. Don't be afraid to experiment with magic and junction combinations. Only through trial and error (and posting questions in this forum) can you discover what works the best.