...I can`t just get to stop. It kinda sounds like vabrodo (not sure I spelled it right), but it im not doing it on purpose. ANy tips?

how long have you been playing? i havent been playing long, and i find it hard to stop that at times too. everybody that i talked to has just told me that i need to practice, that it was an embochoure (bad spelling i know) problem

Take the neck off of the horn, and start by blowing air through it. Try to control your tone through a smaller part of the instrument, in stead of the whole thing at once.

One of the problems you are most likely experiencing is lacking a steady and supported air column. I used to have the same problem, here is a cool technique to practice:

Take a small square piece of paper, say about an inch or two on one side. Hold the piece of paper against a wall as you stand about a foot away from it. Begin blowing on the paper while concentrating on keeping a focused beam of air centered on the square. Remove your hand and see how long you can hold the paper there. Remember the focus is to see how long you can hold the paper against the wall with strong centered air. happy practicing!