I became a father 2 weeks ago and that's the thing that's struck me most. We're only 2 weeks into it and we are giving everything we have night and day to look after our daughter.
I don't recall ever hearing my parents using it against me or even mentioning it. You suddenly realize that ever parent has just taken it on the chin and selflessly put themselves second to their children.
As a father I completely understand why, as a child I just had no idea (until now).
For me, the first 6-8 weeks were the most difficult. It starts getting easier and you start getting better at it. Hang in there.
Your parents didn't mention it because they probably forgot how difficult that part was. It passes quickly-- even though it may not seem like it at the time-- and is mostly a blur when you look back. Take lots of pictures. Think about keeping a journal.
Then it gets worse... Then it gets better.. Then it gets worse.. Then it gets better... I'm not sure how long that loop lasts.. But dealing with teething, sickness, going from crib to bed, etc.
The hours of sleep change from time to time. But there is nothing quite like seeing your child look at you with a grin from ear to ear when you come home and they come running up to you saying "DADDY!" (or "MOMMY" -- but I'm not a mother ;) ).
Just to add to the many other comments here: Having just crossed a year, I swear it does get better, much, much better. Also you will honestly almost completely forget how intense those first few weeks are. You will have increasingly more and more time for yourself. In fact I'm pretty sure this year has been one of, if not the most personally productive and I've refused to sacrifice anytime with my son to make that happen. There will come a time soon where that baby is able to completely refresh you much faster than it can drain you, that first real smile... better than 3 nights of sleep :)
I don't recall ever hearing my parents using it against me or even mentioning it. You suddenly realize that ever parent has just taken it on the chin and selflessly put themselves second to their children.
As a father I completely understand why, as a child I just had no idea (until now).