Don't u no how hard it is to meet the right person at the right time?

Don't u no how hard it is to meet the right person at the right time?
Don't u no how hard it is to meet the right person at the right time?

Don't u no how hard it is to meet the right person at the right time?
你知道在正确的时间遇到正确的人是多困难嘛?