1st things first - learn how to quote things and after the quote right ur question.
2ndly from ur Q:
1 if i apply for cards and have no credit history will it affect my score?
you were not being clear that you dont have a CC. - it sounds like you are asking "if i apply for card
S (which means a few cards)" and that means you have a CC bec otherwise y would u apply for a few cards at once before u had one card?!
so now that you say you dont have one. so look around the forum to see what is a good CC to start with and use the answer that
AsherO said and apply that to yourself as well.