((((((BlackTears))))
I have that mommy guilt too. My children are 12 and 15 and have been experiencing my "stuff" since they were born. They have come to visit me countless times in the psych hospital, and never know how mom might be feeling any given day. I have tried my best to not raise my kids as I had been raised, maybe overdoing the opposite. They know I love them, though, and I guess that is key. I'm sure there could be "better" parents than we are, but we do the best we can. Our experiences have helped us to be more compassionate and sensitive to their needs, so even if we aren't "there" for them all the time, they know that we are there, ultimately.
I hope this helped, at least to know that there are others (I) that are having the same worries.
Take care!