What vitamins are recommended for an 18 year old female like myself? i really don't know what vitamins are best for me.

Multivitamin ; Vit D: While it's best to get nutrients from our diet, most americans are deficient in vitamins ; minerals so it's wise to take a good quality multivitamin. See http://bit.Ly/1b36cq0 for independent ratings of 101 brands- any in the top 30 are great! but everyone should also take 5-8000 iu of vit d3 in fall ; winter months to achieve optimal levels- take year-round if you don't get much mid-day sun.