A little of my week I'm so tired because I was out all day yesterday and today, both studying and learning how to do the process of cell culture and dead cell marker substance. I'm sad because I don't have money and I can't buy anything that I want. On march 15, I have quitted my job to have time to study and go to the scientific research. I haven't practiced my english lately. Just trying to play guitar and sing american songs to practice the pronunciation. I hope it's worths, because I'm so exhausted these days...