Vitamin Supplements & Omega 3 fish oil

Hey Guys,
Ok Im not getting enough regular meals because of weird schedule of classes. These days when I get back home at aroun 4, I eat my lunch and then dunt eat dinner. I know vitamins and other minerals are important for skin too. I started devloping those white marks on two of my finger nails and decided to stick with vitamin supplements. I have done quiet a bit research on vitamin supplements and omega 3 fish oil. Im going to take these for the first time in my life. I bought vitamin supplement and fish oil omega 3 capsules today from CVS pharmacy. It was so wried to see that fish oil capsules were so big in size:konfused:. For a wild moment I thought if i should open in up in order to take it. But I did swallow it with water after the meal.
If you guys have any experience with vitamin supplements and fish oil capsule?