BREATH...you're doing good. Is this your first child? Well, as we all do, we have to learn from our first child and practice makes perfect. GREAT that you have stuck with the same routine and had success in getting her to sleep in her own crib. For some moms that's half the battle. First, let me suggest that you check out or buy the book The No Cry Sleep Solution by Elizabeth Pantley! WONDERFUL reading and it's an easy quick read too.
What I would suggest is this....at 7 months old, babies should be able to technically go to sleep on their own with no mommy or daddy help. But their babies, their humans, they, like you want to snuggle and sometimes need reassurance to go to sleep. Some people like the cry it out method, I don't and that is where this book came into play. Babies go through spurts where they sleep/eat/nap wonderful and then something goes "wrong" and you have to start all over. Their growing and their minds keep racing and developing faster than the rest of them, and they have to get up and tell everyone about it.
Start with your normal routine, around 7 give her her bottle first, this will probably throw her off, but try it, start with that, get her comfortable and full and kinda groggy but not asleep. Do this in a calm but lit room. Then do the bath, do the lotions, the songs, the books etc...you can rock her a bit but then put her down AWAKE or at least GROGGY. You dont' want to put her to sleep asleep. Because the last thing she remembers is you, holding her and singing to her. When she wakes up and you're not there, PANIC! Try that routine and see how she does.
If she is only waking up once you're doing good. Babies will continue doing that on and off for up to a year and sometimes longer. Remember sleeping through the night is technically 5 hours of straight sleep, but as they get older they can sleep in longer intervals without needing you for comfort. BUT you have to "train" them to go back to sleep ON THEIR OWN!!! This is where the book comes in handy.
Bringing her back in bed, is ok, but you're setting up a bad habit, and I did the same thing with our daughter. I couldn't stand her crying and the easiest thing was to bring her back in bed, nurse her next to me and we would sleep so much better that way. PROBLEMS later on for us both.
Keep up the routine, just change the order, get her to go into the crib awake or groggy and reassure her you're there, go in and comfort her WITHOUT picking her up and she'll get the idea.
READ THE BOOK, it will definitely help in your quest of answers! Good luck!
A. B