Sleeping Woes

So Adelaide will be three months this week! She's starting to get a little personality which makes her awake time much more fun (on a good day). However good days are sometimes hard to come by. She is a fantastic sleeper at night. Goes down at 6:30 sharp almost every night and has started to sleep until around 4ish when she wants to eat and then falls back to sleep until around 7. However we've only had one good day of napping. We're lucky to get a 30 min. nap in the morning and an hour in the afternoon. Then she ends up so fussy by the end of the day because she's so tired. She's sort of right between the age where crying for extended periods is a good idea and for a nap, crying for too long seems to defeat the purpose. I feel like we're just being so inconsistent because we've tried so many different things. We're up to letting her cry for 30 min. and did that today but she was still at it. It's so frustrating because I don't want to be so anxious about her sleeping that I don't enjoy when she's awake but I know how valuable sleep is to her and she does so much better when she gets good naps, as do most babies. It's also hard because there are so many opinions about what age and how long you should let your baby cry or if you should let them cry at all. I'm all for letting her cry because if it were up to her she would stay awake all day and she needs to sleep. The book I'm reading is also helpful and I think when she's a month or so older it will be easier to follow to get her on a schedule and I'll be more comfortable with letting her cry longer but at her age it's kind of vague. Anyway, just venting, as I think most first time parents do. Oh well! It can only get better. I'm sure if we keep at it she'll understand eventually. I'm glad I've had the support of some family members and friends to assure me, especially when Addy is crying her lungs out in the background.