It sounds to me like your baby is still very young. If that is the case, do not just let her cry it out. Most people don't recommend that option until at least 6 months of age - and some never at all. I have a two year old & I remember some suggestions that I was given when I brought my newborn home - and also some things that just came from intuition.
Here are my suggestions.
1) Choose your night & day schedule (ie: Nighttime is from 10p-7a, Daytime is 7a-10p - whatever.)
During the daytime hours, keep the house well lit & full of life (music, toys, housework...activity). *Even when she naps! Throughout the daytime hours, wake her for feedings(every 3-4 hours).
As nightime approaches, start to quiet the house, calm the activity & dim the lighting. If you want a bedtime routine, then start doing it every evening at the same time...bath, books, rocking - whatever works for you. Try to set her final bedtime for right after a feeding. Do not wake her to eat during the night. If she wakes in the night for feedings, keep the lights off or dim, speak very quietly, keep things very quiet & calm. (During the transition, it would be great to use a crib soother or some soft music & a toy or something to occupy her if she gets too alert.)
The basic idea is to make day & night dramatically different.
2) Infants do need lots of sleep (3-4 naps during the day). Watch for her natural sleep rythyms. Pretty early on I could see my son falling into his own routine...falling asleep the same time every day, etc. Keep track of what happens when & then try to commit it to your routine. My son had a 3 hour cycle during the day...whenever he woke up, I knew he would be back down to sleep approx. 3 hours later...so that was my target & I built a routine around it. By 6 weeks old, he would sleep 6 hours for the 1st half of the night (8p-2a) and another 4-5 hours the 2nd half (2a-6ish) - so up once for one feeding. As he got older, the time asleep got longer...for both of us!
3) Give yourself a lot of credit. Motherhood isn't easy for any of us. But, you can do this - I promise. Just get your gameplan together & then realize that it may not work out exactly like you plan...if you approach it calmly & with your daughter's best interest & your sanity in mind - it will all work out!
This is one of my favorite topics. I think a baby's sleep routine is one of the most important parts of this child raising process. I'd be happy to share more with you, if you're interested. Good luck!