Is it normal to be jealous,angry and to bully bullies

seems like your whole fighting thing as given an edge to you that has gone way over healthy competition, especially since its close to home and within the family.
i agree in the advice theres always someone better and more unfortunate than you. be grateful for the fact you are top of the class, and also just for the most simplest things in life. I think alot of looking down and sizing yourself up against others is borne out of competition. Its when it goes to jealousy feelings that it becomes bad, sportsmanship wise and for you personally. Jealousy will eat you up if you keep on dwelling on it. Be happy for your opponents if they win, don't be a sore loser. Lose gracefully. Not the end of the world. the fact you are questioning if your behaviour is normal or not, is a sign you are doubting what you are doing at the moment. Don't compare yourself to your mates, differentiate yourself by doing things YOU want, in YOUR way, at YOUR speed and do them to the best of YOUR ability and within YOUR means. Your Martial Arts values and skills can only go so far, compared to your innate skill of using your own common sense and knowledge of self worth to achieve bigger and better things. then you won't have to worry about being angry about falling short all the time. To fight because you are mad is probably the reason why they are using the stupid word. Theres other ways of fighting bullies outside of physically taking it out on them.