Looking on the internet deeply has found these results:

i am not good is the most popular phrase on the web.

me not good 1666,000 results on the web	i am not good 110,640,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I am not good for the stairs. I am not good at choosing the people I hang out with. Again, I am not good at quoting in context. I am not good at that. I am not good at those things. I am not good at these things, and especially not now. At school I am particularly good (and modest!) and my favorite subjects are math and Italian, and one that really don't like is Art, as I am not good in drawing Enrico Boccioletti: It is often a great random cake. I am not good at cooking, but I always say I would like to learn: bringing something from "raw" status to one more complex, domesticated.

me not good

1666,000 results on the web

i am not good

110,640,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I am not good for the stairs.
I am not good at choosing the people I hang out with.
Again, I am not good at quoting in context.
I am not good at that.
I am not good at those things.
I am not good at these things, and especially not now.
At school I am particularly good (and modest!) and my favorite subjects are math and Italian, and one that really don't like is Art, as I am not good in drawing
Enrico Boccioletti: It is often a great random cake. I am not good at cooking, but I always say I would like to learn: bringing something from "raw" status to one more complex, domesticated.