sneaky pete: In someone else's shoes
I was 22 then and the youngest in the team. When, on the eve of the match, the strategical plan was being decided upon, the first to speak was the elder, M. M. Botvinnik.
Looking steadily at me, he pronounced in a clear and imposing tone: 'I hope that everyone understands the crucial nature of the match and that no one will play the reckless King's Gambit.'
That the ex-world champion was right in his assessment of the moves 1.e4 e5 2.f4 .. I did not realize straight away, but much later, when he convincingly refuted my opening construction in our personal encounter. But at that time, in 1946, I loved the King's Gambit with all my heart and never lost with this opening.
But the word of an older man is law. And I chose the solid Ruy Lopez. Already in the opening my game was not coming on well; then I missed my opponent's strong manoeuvre Qd7-c6-c4! and lost, one might say, rather wretchedly.
No, it is no mere coincidence that people say you should choose your opening according to your nature.
Bronstein, <200 Open games>.