Comparison is not bad. But it is healthy only when it is examined within the same body. You can compare, how well or not your metabolism is now, than it was a year ago. That way, you will learn to nurture your cells and you will know what is absorbed by them better. But if you say, "My rate of metabolism is slower than yours." is there any proven fact? Moreover, you cannot consume as much as them and if you force to, your gut wouldn't digest and you will get ill as a result of your foolishness.

The same goes with writing.
So is any other art you learn or anything you pursue.
Upgrade yourself and compare your today with yesterday.

- ©Lenny