Messy people tend to miss appointments

I don't like to be late, but I'm having relationships with too many O and ABs. Sorry, those are the blood types of my friends who often miss the appointments.After sometimes, we should've known each other but they keep their inability to be punctual and I can't lie telling earlier appointment time. I usually gone wild for a while, giving them intimidating attitude and they just say sorry. But, after 10 minutes we're back like nothing happened. They also forget to learn the mistake.

I wonder, how do people deal with the uncomfortable feeling of stealing others time? I wake up earlier just to prevent missing the time. I prepare my outfit and pack my bag a day before, so I won't spend so much time on the big day. I analyze every the time needed for walking to the station or to pray so I can be there at the right moment we promised. But, why can't they do the same? 

Once you late, your next schedule will be delayed. You need to spare more time and effort to catch up. Call me greedy but the truth is I want everything. Everything. So, in order to get them, i have to arrange my time wisely, precisely. Not to spend more in one, always stick to the schedule. What? Sounds boring? Not at all. The supreme feeling of accomplishment is never boring.