I definitely know what you mean. I'm not in college anymore, but I'm still in my 20's. Having a dog is like having a child. Some days I just wish I can send Bailey away for a few days.
My coworkers go out for happy hour all the time after work. I can never go because I have to go home to walk and feed Bailey. I'm always late for events because I have to make sure Bailey pees before I go out for a few hours. Then I have to be back by certain time to feed and walk her.
There are so many times where I can't go somewhere or do something because it's too far away and I can't leave Bailey home for that long.
So besides sucking my wallet dry, my life is more restricted because of my dog. I can't just randomly crash at friends place or be gone for more than 8 hours. And when I am out that long, Bailey is not tired and wants to play, but all I want to is sleep.
On weekends, she doesn't let me sleep past 8am because that's the time we get up on weekdays and she wants to eat and go to the bathroom.
Yes, there's a lot of benefits to having a dog too. I'm never alone. It's great to have someone waiting for you when you get home. I feel safer having a dog. I love agility, but honestly at my age, I want to be out with my friends and drinking every night, but that won't happen with my dog. If I could go back in time, I probably wouldn't have gotten a dog.