Relieving stress?

I think i am getting more and more abnormal... Well, i can laugh like mad for the least funniest thing and according to jian nan, i laughed like annoying orange -.- Well, one thing good about being abnormal is that i seem so happy. Laughing laughing laughing. Maybe that's the way to relieve stress. But sometimes, it gets a little bit insane. But seriously, i don't know what's wrong with me. After laughing too much, i can suddenly go into the headache mode... Weird right? I know but i don't know what's wrong. It seemed like my temper improved quite a lot after since all this abnormality. Well, laughing may be good as it keeps you alert and at the same time, you are exercising your tummy and cheek muscles. Although i laugh so much and i sort of relieve quite a lot of stress, i am still very stressed. I know it sounds like a contradiction but i am really feeling stress up. Next week there is common test and there seemed to be so much to do and so much to study. More than that, there is more homework as each day goes by. These pile of homework can represent the amount of stress i am facing. I have no idea if laughing is a good way of relieving stress but sometimes, i feel lighter emotionally/mentally after laughing out loud. At the moment of laughter, my mind will just go blank and all my attention will just be laughing and how funny the particular thing was.
I found out that i have another way to relieve stress but i don't think it is quite recommendable. Well, it is day dreaming. Most of the time i enjoy day dreaming because when i am day dreaming, it feels like i am away from the reality temporary. Although it is temporary, sometimes i feel that leaving the reality just for 5 minutes lighten my emotion. However, day dreaming can be a waste of time. Example, you are studying halfway and because you are too stress and you started to day dream. Maybe you took 10 minutes to day dream and so, in that case, you wasted 10 minutes of your studying to day dream. Maybe within that 10 minutes, you will manage to understand and learn more but you have wasted it on day dreaming. But think about it, if many other ways of relieving stress do not work but day dreaming does, why not day dream? Maybe after day dreaming for 10 minutes, your mind will be clearer and you will be able to pay more attention and concentrate better on your studies. However, it is important to know that day dreaming just temporary brings you out of the hustle and bustle of reality but very soon, you got to come back. No one can day dream forever or else, this person cannot improve, cannot move on. For me, i do day dream during lessons but now, it is getting lesser and lesser which is not a bad thing because this means i will pay more attention to the teachers' lectures. Most of the time, i day dream when i am like stoning and sitting at one corner and no one is actually talking to me. Well, for that moment, i feel like i living in my dream world. It seems like i lived in 2 worlds. One of it is the reality and the other is the dream world. In dream world, things seem to be so perfect. Oh well, that's why it is a dream world, flawless, perfect. In reality, can things be flawless, perfect. It is definitely a NO! That's why in reality, people get stress because people can't achieve what they want. So, at last they will enter their dream world to relieve some stress.
No matter it is laughing or day dreaming, you have to do it in moderation. When you laugh too mad (like me), people might have a impression that you are mentally unstable and crazy. And when you day dream too much, you will definitely be living in your own world, thinking naive. At the same time, you will also be slower than the rest because the rest are progressing while you are still day dreaming, living in your own world.