<human>: Can you give me a shortened version of the text?

Hey guys, I'm 18 years old and my adolescence was a trying time for me, with a lot of emotional ups and downs which is "normal" for a female going through puberty, especially one as sensitive to hormone fluctuations as I am. However, the last few months (since this semester started basically) have been weird for me. I feel tired all the time and usually sleep 12-14 hours a night. I have trouble going to class and when I go, I usually can't focus. I feel fine a lot of the time and laugh and joke with my SO, have a healthy sex life and social life but if I'm alone and things are quiet, I get very down and extremely lazy. 
Now, being lazy would be ok and normal except for the fact that it's extremely out of character for me. I was a fantastic student in high school and my first year of school I pulled just over a 3.0 (not great but not bad either). At this point, this semester I'll be lucky to pull a 2.5 and not for lack of studying either, it just seems like I woke up stupid all of a sudden and I can't retain anything anymore.

I used to love to sing and play viola and since being away at school, I've lost the drive to even do that anymore, practicing is a chore and I'm not passionate about my music minor or my chemistry major like I was a year ago. Also, I've been really gone lately, I've run 2 red lights in the last 6 months just because I wasn't present. I know it's dangerous but it's not a normal thing for me, I just don't understand. 

Things that I used to find easy, enjoyable, or fun just don't feel that way anymore and I don't know if it's just that life in college is harder or that I am slipping. I hate getting medical advice from reddit but the last time I went to a therapist she sent me home telling me that it was my boyfriend breaking up with me that was making me so sad and that it should go away (this was about 4 years ago and obviously it's back with a vengeance).
<bot>: I was the perfect student in high school and my first year of college and this year I can't even get out of bed