If you've recently been admitted to BYU and are starting to have some anxieties, here's my advice (note: some of this info pertains to all college life, some pertains to only BYU, so i'm sorry if you're going somewhere else but the fact of the matter is that i'm at BYU, and that's the college life i know).
Obviously I'm still only a Freshman and obviously I need to take some more of my own advice, but this is what I've managed to figure out in the past few months of my life:
Don't worry about the whole marriage thing. I've been on two dates since the I started BYU (this last August). If you want to go on dates, you'll find them, if you don't, you won't (of course, I'm personally frustrated with my lack of dates, I am terrible at flirting and all that... stuff). You'll attract who you are, so if you don't like those silly things, odds are you won't be doing TOO much of it (no guarantees).
Also, crazy concept that everyone seems to forget - YOU are the one who makes that oh so important marriage decision. So When people say "Oh my gosh, I'm so scared, I don't want to get married in the next year!" Well, then, uh... don't. That's what I say to them. No one's going to tie you up and drag you to the temple (and if they do, bad sign). I guess if you meet someone and get engaged real fast, that's a sign that he's the right one, right? And if that happens, you won't be worried.
Okay, that sounds like I'm lecturing or something. You have your head on straight, you'll be fine. That being said, my biggest regret to date in college has been that I've spent all of my time with the ladies. I love them all, but I'm in serious need of some testosterone. So don't be afraid. Don't be. Please please don't be.
And when you're sitting there your first night and feel ready to cry because it all comes crashing down on you in one sudden, swift wave of loneliness, it's okay. Go ahead and cry (go to the bathroom if you don't want the roommate seeing). Cry for a bit, read a book, get some comfort food, and go to bed. Then get up the next morning and try again. Don't dwell on those feelings. Also, I promise you every other person in your building is probably feeling the same way, or they will soon. It hits everyone at some point, it's actually rather hilarious to talk about it with them later and admit you all cried in the shower.
Heritage is cool, Wyview is cool. I'm in Helaman. Not where I wanted to be (last choice, actually), so make other backup plans. Sometimes, there are other things in store for you, so just make the best of any situation. Wyview is far away though, so that's something to consider. I know a lot of people that love it though, and if you purchase a bus pass, then all you need to do is schedule around the bus times. New Heritage? ROCKIN. Seriously. Get there if at all possible. Now that I think about it, I don't know how much of Old Heritage will be available next year. Helaman has turned out to be a really great place, too. So be open to options you didn't think you were willing to consider.
BYU is a really incredible place, and don't let anyone tell you different. It's popular with a lot of people to think it's cool to not completely obey the honor code. Silly as a lot of the rules may seem, however, there is a reason behind all of them. These weren't just designed to make you miserable and ruin your fun nights with guys. They will make your college experience better, I promise. The fact of the matter is that we all sign the honor code, so if you have a problem with it, that's fine - but why are you here? If you find it too restricting and are incapable of keeping your word, then by all means, find a different school. Don't pay attention to what friends at other schools post about BYU. I'm sorry they feel so strongly about a school they don't even attend. You're lucky to go here.
Studying with the spirit is such a unique opportunity, one that you won't find in many other places. Take advantage of it. Go to devotional, participate in your ward, do your visiting teaching, keep up on your scripture reading along with all the other reading you have to do, and say your prayers. Ask for a blessing if needed, you are always surrounded by a worthy priesthood holder somewhere. You get to start each class with a prayer - how incredible is that?
The school work is hard. Really hard. I saw a girl at another school tweet something the other day about how the class she was currently in was easier than her high school classes. Man, I was jealous. People think that BYU is all marriage and dating and weird things like that, but it's really challenging, too. Don't be disheartened when you look up at the TV in the testing center and see your first fail or C, or maybe even B, on a test. I assure you, you will live. Go take a break for a bit, watch a movie, then keep on studying.
Speaking of which, don't you dare just spend all of your times studying. Or all of your time socializing. Life demands as balance, and believe it or not that doesn't change when you get to college, though a lot of students seem to think it does.
Don't forget to do your laundry and eat food and get enough sleep. Sound simple now, but it's not. Your body is meant to get crucial sleeping hours in the middle of the night, and going to bed at 4 and waking up at noon each day is not an alternative to normal hours. It might be possible, but it's never advisable.
That being said, sometimes it's necessary to stay up until 4 writing a paper.
Be kind and cordial and considerate to others. Really, these are basic rules of etiquette, but people seem to forget it when they're walking around campus with their headphones jammed in their ears and hands stuffed in their coat pockets. The goal is class, the goal is getting up the RB stairs, the goal is getting indoors before you freeze. But not enough people look at the people they're passing and remember that each person is going through some of the same things you are every day. Not enough people simply smile and say hello.
Being kind is never out of style.
Get some "me" time. It's hard to find moments of quiet when you can be alone with yourself, but it's possible.
And finally, just enjoy it. College life is different. It's liberating and exciting and really quite awesome. It's not going to happen again, however, so take advantage of every situation that is presented. BYU is a pretty incredible place, you know?