So you can't make up lessons and you don't have to feel that you have learned much less than others. ...
I am also a liberal arts student. I think from my experience, first of all, you should do more questions, not too difficult, and it is better to be more basic, because it is easier to grasp the basic points ... you can't throw away a pair of answers after you finish. You should analyze where, how and what mistakes you made to provide reference for the next question. .
Also, you have to look at the questions the teacher says from time to time to see if you have mastered the methods of this kind of questions ... You are still learning new knowledge, and the comprehensiveness is not too strong, so you must take new knowledge seriously and try to understand what you don't understand, so as not to find yourself ignorant in the future. .
Well ... I forgot to tell you that you must listen carefully in class ... this is the minimum requirement. Mathematics is not like other courses. You may lose your mind for a while. ...
Try hard.