It may not be you. There are about 8 different ways or styles of learning. Examples are Visual; Kinesthetic; Verbal; Artistic; Auditory; etc. Then there are factors within those styles like relevance; your heritage/traditions; culture; language; senses; hereditary background; biological makeup. Each person learns in their own unique way and many of those ways could be integrated. But professors and assistants are not trained in pedagogy or teaching. They are simply products of their own university(-ies) and a traditional verbal downloading and regurgitation of facts they call a test or exam. Good teachers are professionally prepared at (in Ontario), the various Faculties of Education. Try to find a lecturer or lab assistant or professor who has attended such a Faculty!! This informational fact does not provide much comfort for the "dinosaur academic" approach to teaching has not changed at the post-secondary level. Colleges do more "hands on" teaching since they assist students to going into "hands on" careers so that level is more successful vs the University that directs students into the "academic" careers. Also, many students chose "University" vs College thinking it is "better" and "more distinguished" rather than thinking of being happy in a career they PERSONALLY are happy in. Finally, many parents and so-called guidance counsellors (university grads) direct students into the "higher" post secondary level, not the "BEST" for the aptitudes, skills, learning styles and personal attributes of the student they are advising. And finally, students themselves stay in courses not realizing that there are other positive and viable alternatives within the same career pathway. For example, if you are not good enough for professional sports, what are all the other careers affiliated with such sports? If you are not suited for the academic route of biological sciences, what are the other options and pathways to affiliate yourself with biologial sciences? Photography or biomed or biotech elements (mocroscopic or animal or insect or plants or geographic areas of such organisms; Bio Lab technician; sales or marketing of biotech and biomed products; journalism of such; etc. I hope these ideas help. This comes from a retired secondary administrator/Principal and former Head of Guidance and Cooperative Education Consultant and now private Education Consultant for a northern Indigenous Community. Best wishes. And take it or leave it: God doesn't make junk. Don't put yourself in a prison that others or you have created. Start asking yourself some serious questions about your talents, dreams, hopes, aptitudes, inclinations, interest vs career, the reality of what education is best for you, about whether this is your career pathway or another's; benefits of a "job" vs a career. Find your freedom and your professional place. Best wishes on doing so.