I'm a freshman in college this year and will be applying to USNA this year. I know that you're supposed to take courses in Calc, Chem, History and English if you are a college student but I have two AP credits in history and one in English and placed out of those classes this year. Also, I won't be able to take Chem until my January Winter Term. Will that hurt my chances for acceptance if I can't take those classes or will I be able to send my AP scores and my transcipt after first semester and then again post January/Chemistry?
First, if you've not already done so, read the sticky above on Reapplying.
The reason MOST candidates don't receive appointments is, at some level, academics. (For a handful, it's leadership, athletics, or terrible recommendations -- but not for most). As indicated above and in the sticky, you should confirm with your RD what held you back.
The best way -- really the only way -- to improve your academics as a college freshman is to get all/mostly As in the plebe courses. The "biggies" are calc and chem. If you can't take chem, take physics. It's a youngster course and doing well in it will make up for not taking chem, providing you take and do well in calc.
The lack of English/history isn't necessarily fatal. However, I find it hard to believe there is NO English (with writing) or history course that you could take. If they're "more advanced" than the plebe courses, that's fine. If you aren't taking them, what are you replacing them with? Stuff like sociolgy, criminal justice, womens' studies, art history, etc. is not going to cut it with USNA -- just being honest.
So, if you were to tell me you're taking calc, physics or engineering, statistics and a high level history course, I'd say you were ok. If you told me you were taking psychology, calc, zoology, and criminal justice, I'd say you were likely doomed no matter how well you did. The one exception would be if you received an A in h.s. AP chem and a 5 on your chem AP test. That could obviate the need to take chem in college; even so, I still woudn't be thrilled with your schedule.