I've had dreams and nightmares about the stupid wish of becoming an actor someday, this is one the most stupid things you've ever heard (you'll probably think). It will never happen to me, but it doesn't mean it has to be the same for you. If you have the possibility to relocate yourself into the States go ahead and do it, that would be the first thing to do on your journey to becoming an actor. Relocate yourself somewhere where commercials and movies are filmed: New York, Los Angeles and other places I don't know about. If you had the bad luck of meeting people who don't believe in you screw them, if you feel, and I say feel, then don't let them get into your head and screw with it. No one knows better than you what are you capable of. Don't let anyone tell you what you can and cannot do.
With every movie I watch I have moments when I think to myself "Hey, I could that", 'cause I know I can, I feel that I can. It hurts at the same time that I'm not able to perform those scenes but I hold my head high, I won't go easy, "When I go to my grave, My head will be high" (Michelle Pfeiffer in Dangerous Minds). I know great scenes when I see them, scenes that are worth to be seen by every living soul on this earth 'cause they can teach so many things, and can do so many things better than they were.
There isn't a better school to teach you to be an actor other than life. A friend of mine who's unfortunate as me told me that the main quality to have in order to excel as an actor is empathy - the capacity to understand through your own being what other people feel, think or need. I mean this is what being an actor means, breathe life into characters. You know you're already an actor when watching amazing dramatic scenes you start shivering, you feel electrified, you want to scream.