someone criticized yours: it was a blessing

Perhaps, we feel that we had done anything perfectly. We gave our best. Our concentration, our energy, and our mind are exhausted to complete that job.

But still. Someone there thinks that there is something less fine to what we did. Someone suggests about something that we dont think it will be suitable.

You may feel it is ridiculous. In your deep heart you may say: He/she might be nonsensical. I know better than them. I have involved this matter long-long time and I know every little thing about this job.

You're right. However, you have to consider the critics as a sign that everybody care about you. Everybody wants you to be better. It was blessing, pal. It was blessing. Lucky you.