So, I have a Nikon D3100 with kit lens. I'm trying to get more into photography but am still very much in the beginner stages. I have $350 (CAD) to buy a lens for myself, and I don't know what to get! Obviously a fancy macro or telephoto are out at that price point, but I can't decide whether to get a better 18-55 (or similar) or a fixed lens, maybe portrait? Could really use some guidance.