Many people think that hypnosis is like what you see in movies and TV shows and on stage. It appears as if someone can magically take control of your mind in order to make you do things against your will.
In reality, hypnosis is a natural, normal state of mind, one that you've experienced whether you're aware of it or not. Being in hypnosis means that you're in your alpha brainwave state. Wide awake, you're in your beta brainwave state. Sound asleep, you're in the delta state. Between these two is another called alpha. When you're in the alpha state, you're simply more suggestable to the environment around you.
Since you experience the alpha state between being awake and asleep, you pass through alpha or hypnosis at least twice a day. You probably don't feel any different in this state, but if you hear bad news while you're in it, you're more likely to be affected by it in an undesirable way. If you hear good news while you're in it, you'll probably derive more benefit from the positive feelings you have because of it.
You're also in the alpha state when you have a crush on someone. You go about your life working or being a student or however you spend your days, but your whole focus is on the object of your affection. Your mind is elsewhere, as it were.
Crying at a movie (or being scared or laughing or any other emotional experience) also requires the alpha state. For the time that you're watching the film, you give your mind over to the story so thoroughly that you respond emotionally as though you're one of the characters.
Now that you know what hypnosis actually is, you can make good use of it. Practice thinking more positive thoughts and expecting your life to go better. Imagine situations ahead of time, being very specific about the positive details you want. See, hear, touch, taste, smell any sensory details in the most pleasant way possible.
If you're willing to practice using hypnosis for the good, you'll be quite pleased with the way your life improves.