I think what I've written here as my diary or something is quite sloppy and must be factually fairly unreliable, let alone grammatical errors.

I could say that here I put the weight more on writing something in English itself than on being careful for factual correctness.

The reason is that this is as writing exercise. And another reason is ... that if I write something in English and post it, you can thereby see that I'm continuing studying English. The major thing I could inform readers of with this blog might be that thing. But it would also be true that it would not necessarily be required for me to keep on this blog for that English writing exercise.