Am I good with these supplements?

So I am 16yrs old and ive been lifting for about 3months. Ive always been on Whey and for a month ive been taking in a little creatine. I just started taking Mult Vitamins daily and fishoil. But the fishoil pills are a little of a hassle for me to try and swallow them and I was wondering if fishoil is necessary for building up, or Is Whey,Creatine,and Mult Vit. good??