The answer to your question is as individual as each baby! In my opinion, "schedule" and "infant" shouldn't be in the same sentence. My daughter ate every 30 minutes (or more!) for the first 3 months and slept every hour and a half or so. Thankfully, she was never that bothered by a wet diaper (nor had a problem with diaper rash) so I wasn't forced to change that as often as some other mothers. Now, at almost 8 months, she eats and sleeps about every 2 hours. And, yes, I let her fall asleep while nursing - but, even so, she doesn't seem to have a problem also being able to fall asleep without the breast or bottle during the day when she's with her au pair. I let her set her own schedule - a lot less stressful than trying to force my own schedule on her. So, unlike most other babies, she goes to sleep around 9 pm, wakes up between 7 and 9 am, and has 30 minute to 2 hours naps every 2 hours throughout the day. (More or less...)
Tummy time - some parents swear by it, others don't. I've opted to listen to those mothers who tell me they hardly ever did tummy time because their babies put up such a fuss and their babies still managed to figure out how to crawl, etc. I don't believe in letting my baby cry extensively so for quite a while I could only do about 30 seconds to a minute of tummy time. She'll handle a lot more now that she's older. I wish I had heard the idea of putting her on my tummy while I'm on my back, though - I think she would've liked that a lot better so I'd recommend that.
I'd also recommend Dr. Sears "Baby Book" and babycenter.com to help you know what to expect and get sleep advice. I don't believe in sleep trainers.
My two cents - hope it helps!
Just love and cuddle that little one and don't expect too much too soon!