Open Question: Can I benefit from omega 3 pills?

I am 21 years old and I am active. I take a mulivitamin, b-complex, creatine, glutamine and whey protein to supplement my diet. I am also a college student with a very difficult class load. I was wondering if omega 3 pills are good for your brain and if they are good for the rest of my body also. Also, are there any other (safe) supplements that you recommend for me? Thanks!