Do It Well?

Seivana thirunda sei - Tamil Proverb
Translation(sort of) : What is worth doing is worth doing well
I would love it if, just once, there is one of these proverbs that will support me. But, no, everything that the wise have said always seems to run counter to what I want to do.
When I first heard this one about doing anything well, I was SO ecstatic. So, the time when my mom wanted to send me off to buy vegetables, I happily quoted this one at her and said,"I want to live by this proverb and since I cannot do this well, I'd rather not do it."
I thought I had the winning argument since, after all, the last time I bought some tomatoes, she took one look at them and said,"So, you paid him money and picked up all the rotten tomatoes that he  had thrown into the garbage?" Sounds more caustic in Tamil, actually - Avan vendaamnu vitterijadhai kaasu kudutthu porukkinud vandiyakkum? (Something, I bet, that SHE was told by HER mother in her day!).
So, did I win my point? NO WAY. All she told me was that it only meant that I had to do things to the best of MY ability and NOT necessarily in the best manner possible. So, I still had to go out to buy the veggies with further advice ringing in my ears - "It ALSO means that you learn from your mistakes and keep improving, not that you can always scrounge around in the garbage for vegetables and pay for the privilege."
After that signal failure of the proverb to help me in any manner, you would have thought that I would abandon the advice it gave as being totally useless. I suppose I would have but some things seem to stick in my mind, as though they were coated in Fevicol, whether I like it or not.
So, yes, comes my working days, my boss used to be dancing around impatiently saying, "It is not really necessary for you to work out everything to 20 decimal accuracy. I need to give this in half-an-hour or be roasted slowly for days", while I was meticulously checking why the figure on the left column was 2874.99999999999, while the one on the right was 2875. To this day I think he blames me for every single white hair he has on his head though, to my knowledge, he has never yet featured in a barbecue as the center-piece because of me.
Over the years, I realized what my problem was - why I had to do as good a job as I could always. You see, the world has two types of people - those whose job is to DO and those who job is to tell how others have done. You need to get into the latter band-wagon as soon as possible - then YOU can make a nice living complaining about others not doing their jobs well and stop bothering about whether you are doing yours well. If, though, you slot yourself in the first category...
Even later in the day, I did manage to reach the level that I always aspired for from the time I heard this proverb. Since I can do NOTHING well, I DO nothing...now!