Giving up before fighting

Who said giving up before fighting is stupid?? Well, I think the people who said that are stupid. They should've been being me, then I'm 100% sure they would change their mind.
Well, let me start by telling you about today.
Today is the day UNESCO gonna decide is batik the original culture of Indonesia. So everyone was told to wear batik. I was freaking out yesterday because every batik shirt that I have need a belt. But after a while I decided to wear my purple batik blouse. But the bluose was very-very-very big, although the size was 'S'. When I reached school, I was told that the belt was really weird and kinda over-dressed. So one of my friend help me to tie the end of the blouse so it's not so big. But at the first recess, some of my friends told me that the tied-blouse looked silly and they told me just to put on the belt. So I did. When I get to class after recess, it was english and my teacher said that the belt made me look like a karate-girl. She told me to put it off or just wore it on my hip. So I asked to go to the bathroom because I already made a little mass and some of particular people was watching with a glare. But then I decided to just wore the belt. At the second recess, more people commented. Some love the belt; some loathe it. At the third recess, I forgot the details but I was furious because EVERYONE were commenting on my belt. So I just take the damn thing off and I shouted at everyone who dared to comment on my blouse and/or the belt.
Oh, and at the second recess I was told that from the long holiday he's still having he's thinking about me for three days. The earliest was yesterday evening. On the bright side, at least he IS actually thinking about me on his very exciting holiday. But I was also informed that the chances for us to be together are 50:50. It seems that the reason of his happiness at the 4 last day of school was because he got a chance to be close with a girl. And my informer doesn't know who that girl was. 50% chance it was me, 50% chance that he recently likes someone else.
My head says that I shouldn't believe in chances. Having that material in school really open my eyes. My heart says..,, I don't know.. It's really beaten up and half of it already agree with my head. Half of it just wanted to wait and hope for the best. But there's when another problem appear. I'm affraid, terrified actually, that he's gonna let me down like everyone else if I keep liking him. I just couldn't bear it anymore. But I also no longer have the ability to forget about him. Since I used all of my strength to forget him the first time, and he manage to pull himself back into my mind. So I can't do it all over anymore. I just can't..

So back to the first paragraph of this post, is giving up really stupid? Even if I haven't made a real move, What if I just just couldn't hold the pain?
The real question for my problem is which is worst? The pain of waiting for someone to love you back or the pain of trying to forget someone you really cares about??

*btw, there's actually more I want to tell today.. but I forgot what else when I'm halfway writing this post.. oh, well..