Around a month of using it constantly should do it. If it's your first new layout you are probably going to struggle at first. No need for labeled keys, it's a

Around a month of using it constantly should do it. If it's your first new layout you are probably going to struggle at first. No need for labeled keys, it's all about developing muscle memory. Just practice touch typing, starting with the keys near the standard position. Your typing speed will naturally increase over time as your brain adapts, so don't get hang up on not improving fast enough on any given day, sometimes you just have to sleep on it.