your constitution increases by 2

Your charisma score decreases by 1 along with either your dexterity or your charisma

As a construct you do not age and will live forever if you are not destroyed.

As a construct you follow/followed your creator and there for will develop similar ideals and a similar perspective on the world.

Warforged Steel Constructs are taller than the average human standing at between 6 feet and 8. Additionally they weigh upwards of 300 pounds. Your size is medium.

you are slower than most due to your weight.

You are naturally resistant to bludgeoning, piercing and slashing damage from non-magical sources.

The steel body is your armor and your size inhibits the use of regular armor. As such you have a natural AC of 17.

On a long rest you can add or remove your current constitution modifier to (or from) your AC (armor class) and it will not change until you choose it to. While it is in this form however, you have disadvantage on all stealth checks made.

You know no language by default. You can understand the language of your creator but cannot speak it.