Im currently struggling with the same things. i have up till now, pretty much just said to myself you will just cope, you have more knowledge behind you this time, you have done it all before, i have been so busy and distracted this pregnancy with xmas and being so sick i sort of havent had time to think about it (subconsciously burying my head in the sand) and now i realise this baby is coming, and i have no idea how to cope, its full speed ahead and im freaking out! Bit i still have all my hopes pinned on 'you just learn to adapt and cope'.
Goodluck with your decision