People usually fail when they are on the verge of success. So give as much care to the end as to the beginning. Then there will be no failure.
-- Tao Te Ching - Lao Tzu
I have learnt that those moments when I feel the most stress, the most desire to give up, the most confused, and the most dispondent, these are the feelings that always come just before a big breakthrough.
The irony is that they are also the moments when it is easiest to stop and give up, to declare failure.
Noticing the feelings; calling bullshit on my rationalisations that tells me I have gone backwards; allowing myself to thrash in any way I see fit; and being curious about what is emerging: These are my personal best tools in enabling me to cling on in those moments.
And then, in a moment, something changes. I meet somebody. I understand something. Something clicks. And the thing I was so worried about moments before now seems mundane. And I have come to a deeper understanding of myself and my existence.