Thanks so much for all your replies, they have really, really reassured me and made me feel better.
I keep on forgetting she is so young and I panic about bad habits etc. I really try to follow Tracey's routines, but I find myself getting stressed out if Cerys doesn't respond well to them.
I don't think I am "feeding to sleep" but she will only sleep after she has had these mammoth feeds.
I will keep on trucking. Trouble is, I find I am spending about 2 1/2 hours with her, feeding, winding, changing, feeding, etc and during the night it is pretty tough going.
I wish they could talk, then we would know exactly what they need!
Thanks again.