My first hand: 13 hcp, with one singleton. My lho starts bidding:
R1: p, 1♦️, p, 4♦️.
We made 5.
My thinking goes: both opponents passed and my partner has at least 13 point. One of the players said, the max jump I should have, is 2 or 3. I did consider to go to 5. But with only 1 ace, I only bid 4.