is it enough if I have already tried my best but the end result is not to mine and others’ expectations?

Saw that this was written by one of my friends (who is also a teacher I guess, but in the US) in the Facebook:

I am in a world of pain, disappointment, abuse, poverty, shootings, fights, death, and standardized tests (aka my week and first year of teaching)…

And another one of her friends replied to [...]

A holiday is not a holiday if your mind is still at work.
Apologies for not updating for such a long time, but I have figured out that I am going to update more often now…but most likely it is going to be in one-liner form.
Who says blog entry can’t be short and sweet? And if [...]

I will be starting my practical teaching soon, in a school yet to be known. I am excited and nervous at the same time. I usually feel this way when I have to move away from my comfort zone to a new environment where I have to start building rapport and fitting in all over [...]

I’m reminded of what one of my friends said during one of our discussions about marriage.
Do not marry a man because of his current worth. Rather, marry him for his potential.
Do you think that’s true?