Roommates in college are just part of the experience, but they don't always put positive energy in your life. You have probably heard all of the roommate horror stories, but in reality, there are ways to get out of your roommate situation if it is really that bad.
My freshman year I started out of school and had a really terrible roommate my entire fall term, and I didn't feel comfortable any more going into my own room or even sleeping there. If you're in a situation like that you have options to move out. Winter term I decided to switch dorms and even though it was a lot of work, it was definitely worth it. I moved into a room with a roommate who actually respected me and my space and was nice to me.
There are also a lot of other options other than just moving rooms; you should always first have a discussion with your roommate about what is bothering you. Communication is key when living with someone because you are completely sharing a space with them. If you just talk out your issues it can usually resolve some of the conflicts, but even sometimes that doesn't work and you may just be not meant to be.
Even with the best roommate, there will be issues because you are living in such close quarters and it is important to remember that you might not always be right in every situation and you need to think of your roommate's feelings too. It is important to listen to both sides of an argument without getting too angry because that leads to more conflict. Having a roommate is just a huge part of college, and remember everyone is dealing with the exact same things.