What's a "troot"?
The fact that you are asking for general help but not even bothering to tell us your army composition, character class, and difficulty level shows that you are very much a novice to playing this game.
But I won't flame you.
You remind me of the first time I player KBTL, and when I tried reading up tactics on the forums I was overwhelmed.
So my suggestion to you is choose this initial setup:
1) make sure you play on EASY mode (the game is set to NORMAL by default)
2) play warrior
3) use the following units in the first 2 islands: inquisitor, royal thorn, (bear), (bowman), royal snake, paladin, archmage
That's it for now, dive in and play the game using that setup and experiment around. Even without using spells and the pet dragon you'll do just fine. Reading up on possible tactics in the forum helps too.