League of legends help

I dont understand this game can some 1 explain, am i just suppose to run around as a champion or what ever with no control over npc minions wtf..

The objective of the game is to destroy the enemy's main buildings that located in their base. you can take 3 paths to get there but they're blocked by minions and towers that attack you. You can't control minions, they're just there for you to farm on them and use them to take the damage while you hit the tower. The objective is to not let the enemy champions get to your base while you try to get to theirs, so you must try to kill them. Each champion has 5 abilities; 1 passive, 3 normal and 1 ultimate. When you kill units you get money that you can spend at the shop to get items that increase your various stats, each champion has a recommended build so if you're lost you can start with that set. wWell that's it, it's a game that takes long to master but it's very addictive.