Proficiency level

would like to increase my proficiency level by learning how to better say, how I want something done. I would also like to learn how to use more details about the things that I am doing or going to do. To further my proficiency, I would also like to learn how to tell why I am going somewhere. I would like to tell what I want to do as a career, and when I would like to accomplish goals. I would like to be able to tell my life goals in Spanish.