Communication style

It has been so tiring... sleeping hours have changed to going to bed at 4am.. to 5 am and still wake up at 10 am. I can't go on like this anymore. It has to stop. My so called buddy has endless things to chat and refuse to end the conversation. But then I realise recently, my personality profile is DS, according to DISC personality profiling. It seems my communication style is short and sweet, as in to the point, and precise. I find it so hard to communicate with people who build up their case slowly, and then fire later. I have so little patience for them! Some people absolutely do that! They go around all other topic, bring in unnecessary side points to support their case, then finally they say their point. Gosh.. Such is the difference in communication style can affect us.