How you feel about school changes as you grow up. Yes, what your mother tells you about missing school once you have finished it is true, but not completely. When I was in high school I remember hating it; waking up at 6 a.m. only to get to a boring class that had nothing to do with my interests was awful. I particularly hated biology class. I don't really know the reason why, but I hated the teacher and all her boring explanations. When I was in class, I used to think about the future, how life would be different once I finished school. And it was very, very different, but not always in a good way.
When I started college, it felt like a great upgrade to my life; it is far more interesting to study and go to lectures when they are interesting to you. Never having to sit in a biology class again was amazing. But not everything was as great as it seemed at first. Being an adult became hard very soon; having to work, manage finances, and make the hard decisions my parents were doing for me a couple of months prior made me realize I missed my old life. I missed school. I didn't miss second-period math or the lunch at 11 a.m.; I missed not having responsibilities other than attending school. I missed being a kid.
Luckily, that feeling didn't last forever; you grow up from missing school and childhood. Yes, I have some good memories from that time, but I didn't particularly love my time in school. But I do like my current life a lot more. Something nobody tells you about being an adult is how awesome it is to be the one managing your life and making the important choices. Now I do what I like. Yes, life isn't perfect, but I assure you it is a lot better than it used to be when I was in school. I wouldn't trade my normal life for anything, not even to go back in time. I'm better now.