How exactly this work mean client buy push for one confirmation only?
Mean if exchange require 3, what then?
Once it will be paid and confirmed others start confirm quicker?
Am I thinking good? I mean not need to buy X times.
The moment your transaction has 1 confirmation, you are sure that it cannot be reversed or double spend in the case of receiving payment for some goods you have sold. And subsequent confirmations can just flow in without you even knowing when its happening but the moment you paid the required fee or even higher than the minimum, I don't think there is anything else that you can do again than to just wait and eventually everything will be completed in due time. The only thing there is losing out when you need it urgently just like wanting to buy a coin, bet on a game just like you have said.