Halloo
Scenario:

Hero opens from BU 2.5BB and BB calls.

Flop: KJ3s (5.5bb)
BB checks, HERO bets 1BB (hero bets range), BB calls.

Turn: 7 (7.5bb)
BB checks, HERO bets 12BB
It is situation when I want to overbet. I am interested in your opinions, your game etc on turn.
1. In situation when you overbet do you use more sizings or only overbet?

1. Is my sizing of overbet correct?

Thank you so much