How to compose the personal statement (PS)?

First, I want to say I survived from last driving practise. But at the thought of another driving practise, I still feel somehow scared. Hehe, be patient, it takes time...
Now, I am working on my personal statement. It is a must in an application package for most job searching. Basically, it gives a summary how excellent you are, how competitive you are, how interested you are in this position. I have never been good at writing things like that. Maybe it is due to the discipline I recieved during my childhood, I always think it unnatural to push others to recognize your merits. Time itself may prove everything, although I don't know how long it takes in general.
It is so weired to me to describe myself in a bunch of beautiful vocabulary to sell myself. Well, I understand it is critical in the modern era that you have the ability to show your strength to other; employers have neither patience nor time to wait for your proof by a long time of tentative employment. Among thousands of candidates, a shining CV and an outstanding ps will give you more chance to win the competition. I understand it perfectly.
If all the applicants are perfect in their statements, what is the next step to spot the right one out? Interviews may help, it gives the interviewers an opportunity to meet the real person in addition to the pale statement. Until then you have the real chance to show your talent and personality to convince the interviewer that you are as good as what you say in the ps. So, the real goal of a good ps is to catch the attention of the interviewers. People know it cold a successful ps does not fall into the generic structures or tones, it has to be "interesting".
My another problem is I don't have so many "interesting" experience. Every day in my life so far is so common. Of course I have a very positive life and I have a positive personality as well (from the bottom of my heart, I am a little withdrawal, you can see it, can't you?). However, I am almost sure that my ps will be ignored among so many "interesting" ones. I am so jeaslous of those who can make out so much fun from their everyday life. That is one of my weaknesses. I know it. But for those positions I will apply for, I don't think this will draw me back too much except from the interview opportunities.
All in all, I know it is inevitable to "brag" at some point. I just don't know how to do it in an creative way without making myself feeling guilty. Sigh, I need to pay more attention to my mundane life to find some potential shining spots!
By the way, I made a loaf of Focaccia last week, it is interesting--unfortunately, it is not a perfect story for my ps:)