Do i buy 16kg or 20 kg ?

Hii, so i'm a 26M male that just started kettlebell and i just LOVE it.

Rn i'm able to do

4x [20 goblet squats, 20 swings, 20 deadlift] with a 12kg kettlebell and i was wondering if i could buy directly a 20kg kettlebell or if should go for the 16kg first.

Thanksss