Life as dental student-dull?boring?suffering?

I don't know whether I'm in the right track or not. Can I pass every year successfully since I'm in great phobia now as I heard from most of the seniors that some quit this path after first year and some even repeat for second year. Second year is a tough year to go,but I'm suffering now in first month of first year. I don;t like bio,really. Then I'm choosing this course.  But actually I wonder how to study biology.  No one really understand my feeling,or can say our dental/medical students' hard work. No one to talk to unless friend of same course.  If there is any friend of other course to listen to what I said,they would never know how busy I am and why am I so busy with.  Frankly speaking,one month had gone and I am not really realising it,how it has gone,what I have done in the past 1 month? I don't know. Wake up,attending lectures,eat,self-study,eat, assignments, sleep.  All days like a cycle,repeating in the same thing and I don't really know what these nonsense things meant to me. Stressed,I cried but it don't really help.  Life still needs to go on.  Long journey to go but I am really in great anxiety now and hopefully I can face all these challenges.