To the best account - Tradução em português

The time, the place, the circumstances under which we now stood face to face in the evening stillness of that dreary valley – the lifelong interests which might hang suspended on the next chance words that passed between us – the sense that, for aught I knew to the contrary, the whole future of Laura Fairlie’s life might be determined, for good or for evil, by my winning or losing the confidence of the forlorn creature who stood trembling by her mother’s grave – all threatened to shake the steadiness and the self-control on which every inch of the progress I might yet make now depended. I tried hard, as I felt this, to possess myself of all my resources; I did my utmost to turn the few moments for reflection to the best account.

Por favor, traduzir os trechos em negrito. Obrigado.