Yes, of course it's worth it. This is for your own good...*slaps OP round face*...now go and talk to some girls.
Your friends have girlfriends...they probably have friends, do they all hang out together? Go along. Now, *Mr.T voice* crazy fool.
Friends will also ***** about their girlfriends when they are around you because thats what people do, especially at a young age, it's easier than working stuff out with the person in question. I doubt your mate would spend time pouring his heart out about how great she makes him feel to you. So you hear all the bad shit and none of the good, so it seems that things are a lot worse than they are.
Plus young teenagers in general are complete nightmares. I will not apologise for this blanket statement, you are, all of you, no exceptions. It gets better with age.