A.A.
I don't know if the "days where I feel that I don't know what I'm doing" will ever go away. My kids are 10 and 4 and I still have those days! DH and I went back and forth between going for a 3rd kid too... and went back and forth for too long that now, with my age, and the ages and activities of the two older kids, starting over with a new baby seems not a great idea... so we're settling at two although both of us are still wistful over the thought of what the 3rd would have been like. If I could do it over (and have the same kids because I love who I have right now!) I would've gone for the third earlier and maybe gone for the 2nd a little earlier too.