The happiness
Here's the secret: you find happiness in having new experiences and achieving goals.
So, I enjoy travelling. I dream of having a tour in Europe, USA and other countries. I'd like to explore new horizons and meet new people. I feel excited when I try different food. It sounds like a lot of fun.
On the other hand I try to work really hard in order to achieve my goals, so the next step is to learn English well to be able to study abroad and do advanced research in my field.