Diet?

I've been doing a lot of reading about foods to eat and foods to avoid. I know I need high lysine and low arginine foods. Does anyone have recommendations for food that work for them? I need things to help boost my immune system as well. I exercise a lot and am average weight, but I don't eat healthy at all and have always gotten sick fairly often. I know I need to start changing things but I don't even know where to start since all of this is brand new for me. 

You can take lysine supplements and multi vitamins.

I've been doing both already actually! I was just curious if there was anything anyone else found that seemed to help them