Nice answers all, I'd say
I'm impressed by the overwhelming response this topic has, I am in loss of word for reply 
What to do if even in your best, you mean nothing compared to others?
Should a value of yourself determined only by yourself, or combined with others opinion? Will it be biased if you measure your own value self worth only by your judgement? Whats being the best of yourself in your own version means and matters to others?
Will be the best of your own version in your own mind fill the void of being nothing, that never been acknowledged as the best or better? Can it fill the hole of inadequacy and self comparison to others, who are perceived better? Is it something you make up because of yourself, or because of others?
Does positivity and inner value worth materially?
I meant why we are even alive and expected to achieve, when we unconditionally and naturally can't even be what we want to be? It's a bit sad, it feels like as a human we are going to have our life wasted into nothingness and still yearn to be the greatest we can't be, that we start filling ourselves with fabricated happiness and fulfilment. unfortunately, that's perhaps one of the better way to cope 
Sorry if I sounded like a pretentious pseudo-intellectual edgelord. Those are just follow up questions, I'm just curious about your perception
What I stated are not my personal opinions as a whole, I just want to know the reason why.
Also why is this forum is still alive?
I made it out of pure boredom.