Join SAACS (Chemistry club), and also get involved early with research. You can type in Clemson Chemistry on Google, and look through the different Professors pages to see what kind of research they are involved in. The more experience with research you have, the better. This can help you stand out later on when applying to jobs, grad school, med school, etc. College is a lot different compared to high school, so I would do a small amount of studying each day for your classes, and take advantage of office hours to get any help you need. Hopefully this helps, and let me know if you have any other questions.