Hi. This is my first time posting here so if I violate any protocols in my post please feel free to correct me

I just turned 35 and am trying to get my body into a reasonable state of good health. I think I should be taking some kind of Vitamins, but I'm overwhelmed with all the information both Pro and Con on each issue. Where do I start to sift through the Hype and the Cautions to get some clear and reliable information? So far with what I've read I'm thinking I should be taking a Daily Multi, some C to help boost my immune system, some Calcium and D for my aging bones, some kind Protein and B-Complex to help me in the gym, and something

for my fading memory(maybe Ginkgo). Oh, and perhaps something to supplement my bedroom activities, though I am completely lost as to exactly what I should choose. To those of you who are "in the know" How does this sound? Is this too much to start with? Am I missing something? Anyone who could offer me some directed feedback would be greatly appreciated. Also, I would like a bit of guidance as to what to consider regarding the quality of vitamins I am buying. Companies to trust.
My thanks in advance to this community for providing a place that I may ask for such assistance.
Sincerely,
szaemon