That fizzy good stuff is something that can easily be pounded in one sitting in any form, from the can or a 2-liter bottle. While that sounded tasty back then, you then read articles telling you that you should have puked it out from all the sugar you ingested but you're under so much dopamine and acids you're basically a heroin addict. There are healthier sweetened drinks at your disposal now - or just drink water, geez.
Even if you didn't go to college, sharing an apartment past the allowed occupancy sounded reasonable on your meager salary. I mean, it was just you, your bestie, some random person, and you best friend's significant other of that time. Now it seems unsanitary and a total lack of privacy.
You saw the cute skirt or the funny shirt and bought it for cheap, and you either only wore it once or it fell apart after two washes. And you kept buying stuff like that in that pattern again and again. The hundreds you spent could have been used on one quality piece of clothing, or part of your rent.
That burger at the dining hall looked good, so you inhaled it, then hours later you had three slices with friends. You had no idea of the repercussions to your health or waistline going on as you stuffed your face with the inhuman intake of cholesterol and carbs. But now you pants do, and maybe your doctor's visits.
OK, most of us will never stop eating candy entirely. But before you were 25 you ate multiple candy bars on the regular. But now we hear the word "Type II diabetes" too many times to take a bite out of them anymore.
No matter when you started drinking, you still had many, many benders with friends (or sadly alone) into your mid-20s. Provided you didn't slip into outright alcoholism, when you stopped after that vomit-soaked, memory losing final one how much they really suck. Probably best it stays that way now.
This one is more low-key, but think about it. You were so used to the easy life, going back home with your piles of weeks-old dirty clothes and washed it there, or had the gall to have you mom do it for you. Now you do it for yourself at a laundromat, not knowing what the hell you're doing or losing stuff and wondering why you didn't learn how to do it right in the first place.
Cramming for a test had you chugging energy drinks and staring at huge textbooks until the crack of dawn. Or maybe you were just hanging out with friends and lost track of time. Yeah, that made perfect sense then - the toll it takes you your body and brain don't make that the case anymore.
You were clueless to just how much you should have gone to the doctor when you had access to health insurance. Even when you were at school you had access to a free clinic that could have checked you out from suspect one-night-stands and you still didn't do it. Now you have crappy or no health insurance.
It was cool to have a haircut like a professional soccer player when you were younger. But you have a steady job now, and having a tight mohawk with a freshly pressed dress shirt looks weird. It's a nice crew cut now or probably some trendy undercut, who knows.
Jumping from gig to gig for the bare minimum seem reasonable when you were first out of the gate. With rising prices and feeling the true burden of debt, the reality of having a secure job means something. That is, if you had the luck of finding one.
Those rebellious years had you push back against your folks, and when you left or commuted to college you strayed ever farther away from them. It was only later that it dawned on you how much they made the effort of keeping you out of trouble. Or at the very least, you were being a complete idiot to them for no reason.
You went too crazy the night before and now you can barely hold it together to walk or drive to school, let alone focus. There are effective ways to call in sick if you're working when you're older, but there's a better option. Just don't drink yourself silly to the point you're puking in the company bathroom at 10 in the morning.
Monday-Thursday: Go to the local spot with friends and have fun until it closes. Friday and Saturday: Rage out and hop from bar to bar until you can't see straight and recover Sunday. This was awesome then, there are so many reasons why it's not as you get older.
You had a close group of friends who were always ready to do things with you or always had your back. As the time passed, you realize at least two out of five people you know or call friends will eventually turn out to be really bad for your well-being. Well after they're gone, you'll think back and wonder how you even tolerated them to begin with.