I am am a 28 year old male and the owner of a 16kg kettlebell which I have been using for a while now. I find this weight to be fine for most two handed exercises but when I try to do exercises with one hand like 'military press' I find that it feels too heavy and I am not confident doing the exercises.
My question is should I buy a lighter bell (or bells) or should I just push myself a bit to handle the one I have?
Also, if I do go for a lighter bell is there a rule of thumb for how much smaller I should go based on being fine with the 16kg?