"The point is, if you write a lot, you know your weak spots ... not hard nor time-consuming to look for them. "

I agree with this actually, which is why I try and avoid using its or it's, and insted just go with "it is", in my case that's one of my personal trip-ups I try and avoid.

If you know you've got a problem, try and work around it. Makes sense, though it can take time for it to dawn on you.

The principle of the thing is good. Or is that the principal...