if you have friends that play, then its really easy to get into it. If i didnt have friends helping me and giving me advice it would be difficult to learn on my own. there are things like what to pay attention to and what to do when you see your team mates in trouble. stuff like this is simple, but if you dont really have any idea you would end up losing.
I say definitely ask your friends to play unranked games with you, youll learn fast.