Yes, many. This game has a reputation for toxic chat, and is pretty damn unkind to new players. You're in for a rough learning curve, so brace yourself.
It sounds like you're lacking in the metagame knowledge of the usual roles on the Rift. Here's a quick rundown:
There are four streams of enemies to gain gold from: One in each of the three lanes, and the jungle. Five players share this by sending one player to the top lane (usually a tank or fighter-type), one player to the mid lane (usually a mage or assassin), one player to the jungle (wide variety of champs), and two players to the bottom lane (generally a marksman and a support, the support being a champ that will be gaining gold through means other than directly farming minions). Many players don't bother to communicate this in co-op vs. AI games since they're so simple for experienced players, but you should always communicate as much as you can when you're new.
I would strongly suggest reading up on the metagame, and probably watching some vids as well. Getting help from friends will help a lot.