What kind of vitamins or foods can help increase my energy levels?

Probably few or None: Energy comes from within. Lots of products are marketed as magical, like caffeine & sugar in energy drinks. But, as always, keep in mind that this is marketing, does not require any carefully designed & controlled scientific trials to verify claims. Buyer beware always applies. Regular exercise, preferably in ways you both enjoy & make connections with others are the most successful. See: nusi.Org.