Brother, im born sunni, id have read only our books initially but the questions created by that were resolved in a manner that i found the truth. Do not be stubborn, do not be biasedz, shias are able to locate hadiths which support their ideas whereas ignorance is being displayed by other school of thought which spread things like, "do not read their books", "do not listen to your shia friends", "never believe shias", and rest i believe you know.