Yep, you need a third ear.
Ok, everyone, there’s been a bit of a change in plans. I wore ear plugs last night and they fell out of my ears at some point, and even so, my roommates watch alarm didn’t wake me up. It actually worked out pretty well. As for her not willing to use her lamp, she said she said that out of frustration and that if I wanted to go to bed early because I wanted to get up early/had an early class, she’d use her desk lamp. She just didn’t like that I was going to bed early because of her getting up early and thought it would make more sense for her to just use a silent alarm and for me to wear ear plugs so I can get up whenever I want and she doesn’t have to go to bed early. It seems we’re cool now, so I don’t think we need to see the RA now at least. Wouldn’t be surprised if we have to go later on. God, I’m really not used to arguing/fighting with people like this. It’s so uncomfortable, but I think things will work out.
Speaking as a mom, and a Mama Bear-
Originally, you presented this as an unaware and uncaring roommate. The more you try to explain this, the more convoluted it seems. I wonder if you’re thinking this through with a goal of compromise and if you are overthinking, to your own detriment. One day it’s awful, the next it’s better. The next it’s not. The following day you think it’s resolved.
Go to the RA. Discuss this among the 3 of you. Listen carefully to the RA’s position. It does sound like you don’t have a clear idea of how roommates live together successfully and are maybe worrying excessively, projecting. Use the support you have from an RA.
@lookingforward Thank you for giving so much helpful advice! I’ve never shared a room before which I think has something to do with the fact that I’m not doing particularly well in this situation. This is very new to me. Also, I definitely worry too much in general. It’s something I need to work on 
Final Update: The Bad News: My roommate stopped using her silent alarm shortly after starting, so I’ve been getting woken up at 6:30 am everyday. Today, a Saturday, she set the alarm for 5:30 am for who knows what reason. She did not set alarms on weekends in the past, so I went to sleep at like 12:30 am thinking it wouldn’t be a problem. Ugh, and I’m already sleep deprived from the week. I’m sure she’ll be in bed for the next few hours like this past Wednesday where she lay in bed until after 10. Ugh, still not sure why she gets up so early just to lie in bed.
The Good News: I’m going to be moving into a single in two days! So there is a happy ending. It’s frustrating going through this now, but I’ll be able to sleep in from Monday onwards.
@ucAdmirer Good news! You only need to wait two days to catch up on your sleep. Enjoy your single!
Meanwhile, I hope no one minds this suggestion: set your alarm for 530 and leave it blaring. I’d be tempted to leave it set for the day after you’re out. I dont know if I’m jk. You tried.