HI N.! I am also first time Mom to an 8 month old girl, Emily. Not rubbing it in, but she is a great sleeper (except when sick and in growth spurts)---I would like to share what I did that worked from the start. It was a technique recommended by Tracy Hogg, Author of "The Baby Whisperer Solves All Your Problems"...and other great books. She outlines ways to fix what she calls "accidental parenting" using her "Pick-up Put-down" technique. It may take some patience and challenging nights but it may help you. My husband and I used this technique from the start with Emily and she got the hang of it quickly. She goes to sleep right away at night and it only takes a minute to sooth her if she wakes herself up in the middle of the night (unless sick). At daycare they even put her in her crib sleepy but awake and she falls asleep on her own. Tracy's book also gives good guidance on setting the mood for sleep and learning what your daughter's sleep signals (identifying the "sleep window") are so you know when to begin your sleep rituals for naps. At night, it's all about "routine"---same time, same activities before bed.
The book I mentioned has wonderful advice for many issues concerning sleeping, eating, behavior all through toddlerhood too. I'll admit that I don't agree with ALL of what she claims but this particular technique worked well for us. Good luck to you and Congratulations on becoming a Mommy for the first time!
If you want to see more just google baby whisperer and you will find all kinds of info to start.
L.