Who Am I

I am your constant companion,
I am your greatest helper or your heaviest burden.
I will push you onward or drag you down to failure.
I am at your command.

Half of the tasks that you do you might just as well
Turn over to me and I will do them quickly and correctly.

I am easily managed; you must merely be firm with me.
Show me exactly how you want something done.
After a few lessons, I will do it automatically.

I am the servant of all great people
And the regret of all failures as well.
Those who are great, I have made great.
Those who are failures, I have made failures.

I am not a machine but I will work with all its precision
Plus the intelligence of a person.

Now you may run me for profit or you may run me for ruin.
It makes no difference to me.

Take me, train me, be firm with me and
I will lay the world at your feet.
Be easy with me and I will destroy you.

Who Am I?

I am called Habit!