I am so demotivated I literally do not have any energy to attend lectures

I have been free balling the second half of my first year because I am so demotivated it's hard to leave bed. part of this is because I hate my major (bio) and the other part is I work really early in the morning (3am-9, sometimes ends at 10am) but this is the only job that pays me enough to go here. My grades currently are terrible (although surprisingly my exam grades aren't that bad for never attending lectures). To anyone that's experienced something similar, what's the play literally what can I do to escape this insane burnout I'm experiencing? How do I get my motivation back?