Voices in my Head

I believe there are 3 different types of voices: the voice we use to speak, the voice that we hear in our heads, and voices from other people. I believe that we do not have full control over the voices in our heads, which means it is our default natural setting to think upon facts our mind is certain about. But hey, as long as those thoughts aren't voiced out loud, you are good right? But in the Wallace video it says that it is real freedom to think upon our surroundings. To be conscious of what is really important in life. But the voices in my head make that particularly difficult. Mainly because the voices are negative most of the time, judging others and complaining about how boring schoolwork is. But I choose not to think like that. Because that was the way I used to think during middle school and it unnecessarily made my life more negative and boring, being unaware of the wonders outside my selfish thoughts. I was very introverted during middle school, so I kept my thoughts to myself. I lived in that depressing world of selfishness and negativity for the 2 years of middle school because I wasn't able to make many friends. When I got accepted to Sage, I started to appreciate the smaller things in life, like being able to go to schools, having a car, having a nice house to settle after moving in from a foreign country. And then I realized I could be conscious of my thoughts and live each day of my 4 years of high school with a more positive attitude.