You may thing I'm a stupid troll but ask anyone, the first thing you should do is level up you're hero's really high. Try to spend you're gems on getting legendary hero's. Also walls are useless, they're good for now but later on they become useless and just raise you're might.
I want to start again! I've leveled up my towers to 7 and have level 3 walls all around my base. If I were to restart what do you suggest I upgrade?? Is upgrading army camps and hero bases going to add you your might??
I have two towers one level 9 soon to be 10 and a level 7 my Might is around 2300 and I seem to go on just well....
Of course at this point I need Centaurs or Griffins... But most of the defenses have been apt romances and Hunters