I don't get it

So I really try to be a nice guy, but I think that I get run over too often. I guess that I could write a bunch of times this has happened, but the current ones are that I am still waiting for a mailbox key, even though we moved over a month ago. I also feel like I bother people if I call them too many times to remind them of what they are supposed to do.
Do I have a right to feel like I need to be treated right? Do I need to take it every time someone runs over me like that? I know that patience is a virtue and that we need to exhibit the fruits of the Spirit, but how do we exhibit righteous anger? And is it worth it for me to do that? What is better for my testimony, having patience and being run over, or gently urging someone to do what they have promised? Maybe someday I will just end up a punk.

Anger

What is accomplished in anger outbursts? I have struggled with a bad temper since I was young. I believe that it is getting better, but I know that I still have my spurts. I was in the airport yesterday in Atlanta and watched a mad chew an airport worker out about another worker standing by. He called the lady a witch as she walked away and then proceeded to rip his tag off his luggage, throw it on the ground, and walk off. Whenever I witness blow ups, I feel like I witness immaturity. Am I wrong? Are there times to blow up? I know Jesus blew up in the temple one day with righteous anger over people using the temple of God wrongly. People may take advantage of you if you never blow up, but it seems that much more gets done with a soft answer that turns away wrath.