Bri, its never to late to start new. With new motivation you can get your grades up. Anything science wise is going to take a lot of effort but it will be so worth it. I know chemistry is a pain... Organic chemistry you'll be able to relate more to. Biology, however, is very important to know and understand if your going into vet care.

You can do it! I know you can. Just put in the time and effort; know that how much you studied was the best you could do.