First of all if the game is becoming too frustrating simply turn the difficulty down.
Second, as to the sieges, a few colonists with high dps weapons can be sent out while the enemies are sleeping to bash/shoot them to death (they leave no guards awake).
Third, choose starting colonists with these traits: sanguine, optimist, steadfast, iron willed,masochist, bloodlust, prosthophile, green thumb. this makes moods much easier to handle.
hope this helps
-Argon
Second, as to the sieges, a few colonists with high dps weapons can be sent out while the enemies are sleeping to bash/shoot them to death (they leave no guards awake).
Third, choose starting colonists with these traits: sanguine, optimist, steadfast, iron willed,masochist, bloodlust, prosthophile, green thumb. this makes moods much easier to handle.
hope this helps
-Argon