Not all relationships last.
I'm a people person and it really hurts me whenever I lose or drift apart from a friend. However, this semester I had so many relationships go through challenging situations, and many of them didn't make it. However, the relationships that have lasted are even stronger than before and I don't regret any of it.
You don't owe anyone anything.
Yes, you do have certain duties to your family and your roommates definitely have a right to be mad if you don't take out the trash when it's your turn, but you don't owe anyone anything. When I started college, I felt responsible for the well-being of nearly everyone else around me. After a while, I realized that I was putting more into certain relationships than I was getting out, so I had to cut some ties in order to keep myself mentally healthy and happy.
You're not going to "click" with everyone.
And some of the people you don't click with might be your roommates/neighbors. Just sayin'.
Nothing tries a relationship like living together.
It's a cliche, but it works two ways. Roommate conflicts can be so difficult just because it's so hard to get away from them. However, you might find that your family relationships improve when you're no longer in tight quarters with them.
It's okay to be single.
While relationships can be great, they are also almost always full of drama. It may be cliche, but being single really gives you the time and space to work on yourself and build lasting friendships.
Loving your body will get you farther than hating it ever will.
There's sometimes a stigma that goes on in the health/fitness area that if you really hate your body, you'll do anything to change it. However, I've found as I've learned to love my body, I believe in it more and push through my workouts better and am more willing to nourish it with good foods.
It's better to not do something than to do it unwillingly.
Let's face it: we all have to do things we don't want to do sometimes. However, there are times we have the choice, but whether because of peer pressure or feeling overwise obligated, we still choose the option we like less. I do best at things when I feel passionate about them and I think everyone does.