Hi,
It all depends on what type of student you are and where your strengths and weaknesses lie, however it sounds like to me that you should do alright. I personally thought physics wasn't a bad class, and biochemistry is actually very interesting. I would say your hardest thing would be that EMT class because I also took EMT classes over the summer, and that can be tough as there is so many random details that can trip you up if you don't spend enough time on it. But the two psych classes and creative writing should help you out as those types of classes generally don't require a lot of studying effort. They probably would just have a bit of busy work associated with it, but no major studying involved. I think if you make sure to manage time wisely, and make sure to focus on the three science heavy courses you are taking, you should be alright.
Also, for time management I don't know what your college situation is, but if you live on campus or nearby then that makes life a lot easier. I generally like to spread my classes out throughout the day, so I have a few hours of break time in between classes. This personally helps me because it sort of forces me to study during my downtime since I am at the school already. And I am a very lazy person so I usually don't go back and forth from my apartment. I study literally all day until all my classes are done, then I go home and relax. Or if I have a test or something coming up, in those cases I will stay a little later say around midnight/1 not too too late and then just go home and sleep after. Living close to your school helps, atleast for me bc it allows me to do that. I found this method tends to work better, for me atleast, rather than pulling all nighters.
Hope it helps, good luck