What is the best way to stop a two month old baby from crying for too long and also for myself are there any vitamins or energy medications to keep me awake because i feel very tired since i've been given birth?

First you must try to find out why the kid is crying. It is the only form of communication they have. Is it aloneness, pain, hunger, illness or just to use their fussing muscles to help push food along the digestive tract. They have weak flabby belly muscles that often must be assisted by their fussing. Some do more than others. If you check them out & do all you can its okay for them to just fuss