Civilization IV

So here is my empire at the beginning and also in the end, because I started war and now I cant expand because I didnt have enough warriors or archers to beat my enemies. I still have no clue what I should do in this game. I just keep pressing end turn button and thats how I keep going. Sadly I had to take this photo with my phone, because my computer refused to take screencapture. I still have lot of learning in this game.