My job - my life

Hi everybody,
I was thinking, what can I write here to improve my English. Then I thought I can write about my job, which is a painting. Of course, not a wall painting, but an oil painting on canvas.
When I was a child, I really liked drawing, painting, and everything which is connected to any type of handcrafting. Since my childhood, I always wanna wanted to be an artist, an oil painter artist. I didn't want to be a famous, just although I'd liked to people to know who has painted this picture or what is the Dajka Nikolett style. I know this way is very long, but I honestly enjoy every day, every color, every shape, every picture, because that is how I can show my feelings. 

My hobby is a painting even nowthis time, I never can't get bored. When I am sleeping, and dreaming, I can see a lot of shapes and colors in my mind, and when I wake up, I must paint it on the canvas. I feel this is my life. This is meaning of my life. And if I am never a known artist, never mind; I am very happy that I can paint, and thanks God for this talent.

Well done. :)  Your writing is good; it's creative and interesting as well as usually showing good grammar!  If I were you, I would revise articles ( a and the) a little.