I completely agree with what Dinogrrl & Bigwig said, so this is a little redundant, but here's what I've learned.
DEFINITELY GET A FLU SHOT,
SLEEP, and eat well. there are tons of resources for eating well on a budget. (
here you go)
Homesickness is real and it sucks. I moved 8 hours away from home for uni. It's the best thing I ever did for myself, but the first month was a blur of loneliness and tears. I had never been homesick before. My feelings caught me way off guard. Just know it gets better. You can't change it, can't hide from it. Just go out there and meet new people, get distracted. Eventually, it'll go away. It may come back, but soon you'll have a new home to miss.
Take chances. I applied for a 2-year leadership-building volunteer program I didn't expect to get. I got it. It changed my life. I met most of my friends through there, got an amazing faculty mentor, and learned exactly how NOT to organize things. My mentor hooked me up with the research of my dreams. I was one of the first ones in the lab, now my face is plastered over fliers and posters for the thing. I started college as a shy, anxious freshman and end it a leader thanks to this program.
Roommates can suck. I've been through
at least one a year... in fact, I'm on roommate #5. Be open. Communicate. Don't be passive-aggressive. Instead, take a deep breath and confront them head-on. But understand that sometimes, it just won't work. If they're doing things that make you uncomfortable or doing things to harm themself (including not eating, no sleep, too much caffeine, etc), you need to get outside help. Contact an RA, RD, CA, faculty-- anything. It is not your job to take care of someone. All you can do is offer to be there.
Nobody cares yet everyone does. Nobody cares if you show up to class in onsie pajamas. In fact, they're probably muttering "same" under their breath. But people will care if you're struggling, mentally, academically, or physically. College campuses are magical places where everyone is in the same boat of academic suffering. There are so many people who want to make a change in the world and help others. Someone will always care about
you, not what you look like or who you are. Remember that.
Be a part of the community. Volunteer! Join a group! Join a bunch of groups them pick the one you like best! Seriously, this is the best advice I can give. get out there. and remember: nobody cares if you just join randomly one day without knowing anyone. It happens all the time. Also, definitely do events with your residence hall! People who dont know anyone tend to end up there. I loved by house in the dorms. We had tons of fun together, and i miss them! Take advantage of living literally right inside of a somewhat exclusive community. (protip: sometimes newer dorms... are worse)
Just ask. You think a professor's research is interesting? Ask them about it. Know someone cool in class? Just talk to them. It's not what you know, it's who you know. So get knowing!
Perfect grades are unnecessary. This is coming from a premed honors student. I had a mental breakdown when I lost my 4.0. You know what? it feels amazing now because that pressure is gone!
Always write something. Never leave a test page blank. Never just not turn in something. You might surprise yourself with being right, or your prof may take pity on you and give you partial credit.
Don't take on too much. You need to function as a human before you can function as a student, employee, volunteer, or friend. You cannot feed someone from an empty breadbasket. Your health is your first priority, then family, then school and things that make you happy.
You will be confused. Get used to it.
You can and you WILL make a difference. It's easy to get overwhelmed with all the horrible things happening. If you are kind, respectful, and supportive, you will do good. It's the little things that count. Simply by existing you change the course of the future-- it's your choice whether you have a positive or negative influence. Do something small to make someone's day better.
and my final bit of advice is...
you'll figure it out. it's become my tagline. everything works out eventually, you just might not see it yet. Go out there. Get a degree. Change the world. Just do it. You're going to be scared, overwhelmed, tired, frustrated, and sad. But you'll figure it out.
If you have any questions, please ask! I've learned so much over these past years.