I need help with these vitamin supplements?

So guys i have some questions with these vitamin tablets. So I'm 16 years old, and i'm taking a vitamin c 500 mg tablet. Also, since I'm so curious with my skin complexion, I decided to take a vitamin e 100 I.U. tablet, since some people say that vitamin e is good for your skin, also I'm wondering if i can take much higher I.U. of vitamin e, like maybe a 250 I.U. vitamin e tablet ? will that be okay for me? And lastly, i'm also taking a fish oil 1000 mg tablet since it's good for your brain. Is that okay for a 16-year-old teenager to take those vitamin supplements a day ? Thanks in advance :- God Bless :)