MaryEllen,
I think it is great that you got the BW book for Xmas and want to launch streiaght into a routine, but as PP said it is a good idea to read the book a few times and come up with a plan that will work based on your situation and lo.
I used to sit and breastfeed him all afternoon and evening
I try to leave him without feeding every half hour and he screams desperately
it is great that you were able to make a drastic change overnight (own crib etc) but if you were previously feeding to sleep all the time / feeding all day a possible option is to gradually reduce the feed to sleep to feed to drowsy and then feed and clear activity. there are a lot of women on the breastfeeding board who have been through this transition and can offer specific support (havce a read of a few recent posts there as i know of at least 2 moms that went through it in December). it is confusing to him to suddenly have his "open milk bar" suddenly closed. i woudl aim to have feeds 2 hrs apart and then build from there. if the feeds are more spaced they will grow to be better/full feeds which will help sustain A time and naps....
I try to read his tired cues, but it seems illogical to me that he could be up for only 45 minutes and start yawning again
for an 8 week old 45 min is pretty much the norm/average for awake time. as angieb said even if the tired cues are not there at this age (often can come too late or we react too slowly to seeing them and end up with overtired baby who has a meltdown) itis best to stick to under an hour while you are setting up EASY and getting to know the signs (others besides yawning)
for setting up EASY at this age when you have had no routine i recommend an approach like angie b mentioned
:arrow: set an awake time or range (like always up by 7 or between 6:30-7 etc)
:arrow: focus on getting the order of events as Eat, Activity (can be short at this age), Sleep
:arrow: read about shh/pat and setting the scene for sleep times (setting up their environment and having a windown routine)
:arrow: establish a good bedtime ritual for the evening - for example you could do breastfeed, bath, cluster feed and massage, and then bedtime
:arrow: spend time observing your ds to learn his temperment and read the sections of the book(s) that explain about how that temperment operates.
i can help you set up a routine if you like. i think they 2 key things for you will be separating the food from the sleep and spacing out feeds; and cutting back A time until you find what works best for him. there are a lot of people here to support you throuigh this, please don't put pressure on yourself or EASY to think that it happens overnight - i woudl allow yourself and DS at least 2 weeks to get things on track and then work on independent sleep and nap length...