BABY ADVICE NEEDED..desperate mom 😩😢

My baby girl is almost 6 weeks old and completely wonderful minus one little thing. I know she is still really little but she can’t sleep alone! She has to be in my arms or laying right next to me in order to sleep. I’m going crazy I’m a full time student trying to finish the last two semesters of my bachelors degree and it makes it almost impossible to work on any kind of homework. I just need some advice on what worked for you! We have a very good bed time routine as well. Or so I think.